The height of an equilateral triangle, shown by the dotted line, is also one of the legs of a right triangle: The hypotenuse is x, the length of each side in this equilateral triangle, and then the other leg is half of that, 0.5x. Infringement Notice, it will make a good faith attempt to contact the party that made such content available by Formula of Area of an Equilateral Triangle. In this topic, we will discover about equilateral triangles and its area. Besides the right triangle, some other triangles have special names. Explanation a2+b2 = c2 a 2 + b 2 = c 2 32 +42 = c2 3 2 + 4 2 = c 2 25 = c2 25 = c 2 c = √25 c = 25 c = 5 c = 5. I have found the formula for building equilateral triangles in minecraft and would like to share it with you! Find the perimeter of an equilateral triangle of side 7.5 cm? F2: $$A = \frac{a^2 \sqrt{3}}{4}$$ F3: $$h = \frac{a \sqrt{3}}{2}$$ The diagram at the right shows when to use each of these formulas. Calculate the length of height = bisector = median if given side Calculate the height of an equilateral triangle - Calculator Online Home List of all formulas of the site Isosceles and Equilateral Triangles. h = altitude . Montclair State University, Master of Arts, Education of Individuals i... Stony Brook University, Bachelor of Science, Applied Mathematics. In an equilateral triangle ABC, AD is the altitude drawn from A on side BC. Note how the perpendicular bisector breaks down side a into its half or a/2 . All formulas for radius of a circumscribed circle. as To calculate missing value in equilateral triangle, based on one known value, you need to remember just three formulas. P = perimeter . either the copyright owner or a person authorized to act on their behalf. What is an equilateral triangle. Triangle abc is an equilateral triangle with side lengths labeled a, b, and c. triangle a b c is an equilateral triangle. The student will also learn the area of equilateral triangle formula. a = b√3/3. a 2 = (a/2) 2 + h 2 a 2 = a 2 /4 + h 2 a 2 − a 2 /4 = h 2 4a 2 /4 − a 2 /4 = h 2 If we know the shorter leg length a, we can find out that:. First, take an equilateral triangle of the side as ‘a’ unit. St. Louis, MO 63105. Consider the following equilateral triangle ABC, whose each side is of length ‘a’ unit. An isosceles triangle has two sides of equal length. The sides that add up to the perimeter are highlighted in red. Un tel triangle est en fait la moitié d'un triangle équilatéral. Thus, we can use the ratio and the length of the height to set up the following equation: Plug in the given height to find the length of the side. The area of a triangle can be calculated using the following equation: Therefore, if  equals the length of a side: We know the formula for the area of an equilateral triangle is: So, since we are told that , we can substitute in  for  and solve for the area of the triangle: Find  if the perimeter of this triangle is . your copyright is not authorized by law, or by the copyright owner or such owner’s agent; (b) that all of the Excel 365 2016. Read more - Program to find square root of a number. basic-mathematics.com. Since each of this triangle's sides is equal in length, it is equilateral. Track your scores, create tests, and take your learning to the next level! Consequently, the measure of its internal angles will be equal and its value of each is 60°. Reaper559666 Level 55: Grandmaster Dragon. A = area . Published: 05 July 2019. If you've found an issue with this question, please let us know. 6 Where sqrt() is a function used to compute square root. Then the formula for the area of an equilateral triangle with side is So solving we get . Area of plane shapes. Length of each side of an equilateral triangle = 9 cm Perimeter of an equilateral triangle = ( 3 x Length of each side ) units = ( 3 x 9 ) cm = 27 cm. Let a be the length of the sides, A - the area of the triangle, p the perimeter, R - the radius of the circumscribed circle, r - the radius of the inscribed circle, h - the altitude (height) from any side.. The equilateral triangle formula. Please be advised that you will be liable for damages (including costs and attorneys’ fees) if you materially An equilateral triangle is a triangle that has three sides of equal length. For hypotenuse c known, the legs formulas look as follows:. Here you may use  and solve for hypotenuse to find one of the sides of the triangle. select three options. The smallest side in the given figure is the base, the second longest side is the height, and the longest side is the side of the triangle itself. misrepresent that a product or activity is infringing your copyrights. c = 2b√3/3. An equilateral triangle is a triangle whose all three sides are having the same length. Find the height of an equilateral triangle with side lengths of 8 cm. How long are its sides? The formula to find the area of a triangle is $$\dfrac{1}{2} \times \text{base} \times \text{height}$$.. Solving for angle bisector: Inputs: length of side (a) Conversions: length of side (a) = 0 = 0. This formula is for right triangles only! An equilateral triangle is a regular polygon whose all the sides and angles are equal in length. Using our example equilateral triangle with sides of 8, c = 8 and a = 4. Derivation of Area of an Equilateral Triangle. Question 2. A triangle with an interior angle of 180° (and collinear vertices) is degenerate. The image below shows both types of triangles. c = 2a. Find the length of height = bisector = median if given side ( L ) : height bisector and median of an equilateral triangle : = Digit 1 2 4 6 10 F. It is also a regular polygon, so it is also referred to as a regular triangle. An equilateral triangle is a special case of a triangle where all 3 sides have equal length and all 3 angles are equal to 60 degrees. 100 = c 2. c = 10. There are two ways to show that the different sides are equal. A right degenerate triangle has collinear vertices, two of which are coincident. information described below to the designated agent listed below. calculate the length of a staircase that is 3.2m heigh and has a slanted height of 4.7m [8] 2019/03/16 00:31 Male / Under 20 years old / High-school/ University/ Grad student / Useful / Purpose of use HTML. What is the length of the base of the triangle to the nearest tenth? A triangle that has three sides of equal length is called an equilateral triangle. We can also use the decimal value of 3 to simplify our calculations. Let be the length of a side of an equilateral triangle. Deriving area of an equilateral triangle using the basic area of a triangle formula. In an equilateral triangle, all three sides are equal and all the angles measure 60 degrees. For some charts or diagrams, you need to create a regular polygon – equiangular (all angles are equal) or equilateral (all sides have the same length). In an equilateral triangle, the incenter is also the centroid (and the orthocenter and circumcenter). An identification of the copyright claimed to have been infringed; So, the area of an equilateral triangle can be calculated if the length of its side is known. Last Updated: 18 July 2019. … In this case, the area ​ ​. Perimeter of an equilateral triangle = 3a = 3 $\times$ 8 cm = 24 cm. Break the equilateral triangle in half, and assign values to variables a, b, and c. The hypotenuse c will be equal to the original side length. a = c/2 To find the area of an equilateral triangle, you need to calculate the length of half the side length and substitute it into the Pythagorean theorem to find the height. 36 + 64 = c 2. 10 Since it is an equilateral triangle, the line that represents the height bisects it into a 30-60-90 triangle. If you know one angle apart from the right angle, calculation of the third one is a piece of cake: Givenβ: α = 90 - β. Givenα: β = 90 - α. After finding your height, substitute your values for base and height into the formula for area of a triangle to find the area. So side AB=BC=AC are equal and congruent. Thus, if you are not sure content located 6; 3; Feature on profile; Embed; Report; PMCBBCode. The formula for the area of an equilateral triangle is given as: Area of Equilateral Triangle (A) = (√3/4)s 2 or (√3/4)a 2 Where s and a represent length of sides. Subscribe 98. P = perimeter . An equilateral triangle is also a regular polygon with all angles measuring 60°. We will use this formula to find area of equilateral triangle. This triangle is equilateral; we can tell because each of its sides are the same length, . You could also substitute it into sin60^@, cos30^@, tan30^@, or tan60^@ to find the height. Equilateral Triangle. Mathematical formula for area of equilateral triangle in programming notation can be written as (sqrt(3) / 4) * (side * side). units. Prove that 3AB^2= 4AD^2. Explanation. The formula for the area of an equilateral triangle each of whose sides are ‘a’ unit is given by: Area of an equilateral triangle = (3 4) × a 2. Send your complaint to our designated agent at: Charles Cohn How to find the angle of a right triangle. Home List of all formulas of the site; Geometry. For equilateral triangles h = ha = hb = hc. Equilateral Triangle: All three sides have equal length All three angles are equal to 60 degrees This formula is helpful to find the area only when its height (altitude) is known. An equilateral triangle is placed on top of a square as shown by the figure below. where a is the length of each side of the triangle. Formulas for Equilateral Triangle. An equilateral triangle is a triangle that has three sides of equal length. Triangle Equations Formulas Calculator Mathematics - Geometry. Take an equilateral triangle of the side “a” units. A triangle's height is the length of a perpendicular line segment originating on a side and intersecting the opposite angle. © 2007-2021 All Rights Reserved, How To Find The Length Of The Side Of An Equilateral Triangle, SAT Courses & Classes in Dallas Fort Worth, Spanish Courses & Classes in Dallas Fort Worth. Use the definition of an equilateral triangle to know that the answer of the hypotenuse also applies to the base of the triangle. As far as the definition is concerned let ABC is an equilateral triangle. Current track: Le triangle isocèleLe triangle isocèle . The height of an equilateral triangle is 5. How long is each side, and what is its area? or more of your copyrights, please notify us by providing a written notice (“Infringement Notice”) containing Si on vous donne un des côtés de ce genre de triangle, il sera alors facile de calculer la longueur des deux autres côtés, dont l'hypoténuse. Explanation: . And let's say that that length is s. What I want to do in this video is come up with a way of figuring out the area of this equilateral triangle, as a function of s. And to do that, I'm just going to split this equilateral in two. Equilateral triangle formulas. If c is the length of the longest side, then a2 + b2 < c2, where a and b are the lengths of the other sides. An isosceles triangle also has two angles of the same measure, namely the angles opposite to the two sides of the same length. Learn how to derive a formula that you can use to find the area of an equilateral triangle. An equilateral triangle has an altitude of 15 centimeters. A triangle with two sides of equal length is called an isosceles triangle. What is an equilateral triangle. Equilateral Triangle. This is the only regular polygon with three sides. Now, the side of the original equilateral triangle (lets call it "a") is the hypotenuse of the 30-60-90 How to create an equilateral triangle, a regular square, and other regular polygons in Excel . Equilateral Triangle. height bisector and median of an equilateral triangle : =                Digit The sides, a and b, of a right triangle are called the legs, and the side that is opposite to the right (90 degree) angle, c, is called the hypotenuse. An equilateral triangle is a triangle whose all three sides are having the same length. Deriving the Formula to Find the Area of Equilateral Triangle. Math Geometry Physics Force Fluid Mechanics Finance Loan Calculator. Since the equilateral triangle shares a side with the square, each of the five sides that are outlined have the same length. h = altitude . The length of a side (the base) is 2x while the length of the height is . Equilateral Triangle: An equilateral triangle is a classification of triangle with all sides having the same length. Now apply the Pythagorean theorem to get the height (h) or the length of the line you see in red. link to the specific question (not just the name of the question) that contains the content and a description of Learn about and revise different types of angles and how to estimate, measure, draw and calculate angles and angle sum with BBC Bitesize KS3 Maths. Triangle Equations Formulas Calculator Mathematics - Geometry. Equilateral Triangle. Formulas for Equilateral Triangle. Recall that the height of an equilateral triangle splits the triangle into  congruent  triangles. Recall that the perimeter is the sum of all the exterior sides of a shape. Solving for median: Inputs: length of side (a) Conversions: length of side (a) = 0 = 0. Published Mar 8th, 2012, 3/8/12 6:29 pm. 101 S. Hanley Rd, Suite 300 Find the perimeter of an equilateral triangle of side 25 cm? Perimeter of an equilateral triangle = ( 3 x Length of each side ) units = ( 3 x 4.5 ) cm = 13.5 cm. With the help of the community we can continue to the length of side a b is c, the length of b c is a, and the length of a c is b. trigonometric area formula: area = one-half a b sine (c) which expressions represent the area of triangle abc? combine like terms by subtracting 0.25 x squared from both sides. Alternative Solution: Without knowing this formula you can still use the Pythagorean Theorem to solve this. asked Oct 7, 2020 in Triangles by Anika01 ( 57.0k points) F1: $$P = 3 \cdot a$$ a = side . To find the length of one side of an equilateral triangle, we need to divide the perimeter by . Equilateral Triangle. means of the most recent email address, if any, provided by such party to Varsity Tutors. Area of Equilateral Triangle = (√3/4)a 2 sq. 8/2 = 4 4√3 = 6.928 cm. Semi-Perimeter of an equilateral triangle = $\frac{3a}{2}$ = $\frac{3\times 8}{2}$ cm = $\frac{24}{2}$ cm = 12 cm 2 It can also provide the calculation steps and how the right triangle looks. Also explore many more calculators covering geometry, math and other topics. 4 University of San Francisco, Current Grad Student, Computer... Cal State Dominguez Hills, Bachelor of Science, Public Relations. Prove that 3AB^2= 4AD^2. The formula in solving the long leg is half the hypotenuse multiplied by √3. We can then use the height to find the length of the side of the triangle. Use the shortcut pattern formulas provided earlier. The given equilateral triangle area is [s 2 (√3)] / 4. An equilateral triangle can be broken down into 2 30-60-90 right triangles (see image). Each of the angles of the equilateral triangle measures 60°. The height of an equilateral triangle, shown by the dotted line, is also one of the legs of a right triangle: The hypotenuse is x, the length of each side in this equilateral triangle, and then the other leg is half of that, 0.5x. A = area . Since we know that the altitude from vertex A to opposite side BC of an equilateral triangle bisects it at point D. So, BD = DC = $\frac{a}{2}$ unit. An equilateral triangle is placed on top of a square, as shown by the figure below. Point P is on base BC such that P=1/3×BCIF AB-12 cm, find AP. An equilateral triangle is a triangle having all three sides equal in length. Today we are going to look at Equilateral Triangles. You might see a congruent symbol, (points to triangle) or you might see that the measure of each side is equal. Find the length of height = bisector = median if given side (base) and angle at the base ( L ) : Find the length of height = bisector = median if given equal sides and angle formed by the equal sides ( L ) : Find the length of height = bisector = median if given all side ( L ) : Basic Mathematics Store; ... or the length of the line you see in red. The Equilateral Triangle . Using the shortcut pattern formulas, the formula in solving the short leg given the measure of the hypotenuse is: a = (1/2) (c) a = (1/2) (25) a = 12.5 centimeters. Equation Fields Format Formula Graphics Lists Navigation Print Review Search Settings Shape Shortcuts Style Tools. Triangles are one of the most fundamental geometric shapes and have a variety of often studied properties including: Rule 1: Interior Angles sum up to $$180^0$$ Rule 2: Sides of Triangle -- Triangle Inequality Theorem : This theorem states that the sum of the lengths of any 2 sides of a triangle must be greater than the third side. F, Area of a triangle - "side angle side" (SAS) method, Area of a triangle - "side and two angles" (AAS or ASA) method, Surface area of a regular truncated pyramid, All formulas for perimeter of geometric figures, All formulas for volume of geometric solids. All formulas for radius of a circle inscribed, All basic formulas of trigonometric identities, Height, Bisector and Median of an isosceles triangle, Height, Bisector and Median of an equilateral triangle, Angles between diagonals of a parallelogram, Height of a parallelogram and the angle of intersection of heights, The sum of the squared diagonals of a parallelogram, The length and the properties of a bisector of a parallelogram, Lateral sides and height of a right trapezoid, Find the length of height = bisector = median if given side  (. Draw the perpendicular bisector of the equilateral triangle as shown below. This formula will help you find the length of either a, b or c, if you are given the lengths of the other two. Ramapo College of New Jersey, Bachelor in Arts, Music. Comment must not exceed 1000 characters. However, if only two sides of a triangle are given, finding the angles of a right triangle requires applying some basic trigonometric functions: Finding the radius, R, of the circumscribing circle is equivalent to finding the distance from the centroid of the triangle to one of the vertices. The area of the triangle “30º – 30º – 120º”, which is one of the special triangles, is calculated as the area of the equilateral triangle. Solution: Median (m) = NOT CALCULATED . Area of equilateral triangle can be found using the formula given below. improve our educational resources. 30 60 90 triangle sides. An equilateral triangle is one in which all three sides are congruent (same length). Let a be the length of the sides, A - the area of the triangle, p the perimeter, R - the radius of the circumscribed circle, r - the radius of the inscribed circle, h - the altitude (height) from any side.. Varsity Tutors. Side a will be equal to 1/2 the side length, and side b is the height of the triangle that we need to solve. an Also they are congruent to each other. I have drawn two different triangles. To find the length of one side, we need to divide the perimeter by : What is side  if the perimeter of this triangle is ? sufficient detail to permit Varsity Tutors to find and positively identify that content; for example we require In case of an equilateral triangle, all the three sides of the triangle are equal. Because it also has the property that all three interior angles are equal, it really the same thing as an equiangular triangle. Below is the step by step descriptive logic to find area of an equilateral triangle. An equilateral triangle has three sides of the same length. To calculate missing value in equilateral triangle, based on one known value, you need to remember just three formulas. This formula is true for all right triangles, regardless of the lengths of their sides. That will only happen in … Equilateral triangles have sides of all equal length and angles of 60°. The Length of side of an equilateral triangle = a = 4 cm HOPE IT WILL HELP YOU..... :-) New questions in Math. Finding the radius, r, of the inscribed circle is equivalent to finding the distance from the centroid to the midpoint of one of the sides. 1 Math Geometry Physics Force Fluid Mechanics Finance Loan Calculator. information contained in your Infringement Notice is accurate, and (c) under penalty of perjury, that you are Consequently, the measure of its internal angles will be equal and its value of each is 60°. When do you use decimals and when do you use the answer with a square root. Let's say that this triangle right over here is equilateral, which means all of its sides have the same length. Equilateral Triangle: All three sides have equal length All three angles are equal to 60 degrees A description of the nature and exact location of the content that you claim to infringe your copyright, in \ - equal sides. By the Pythagorean theorem, the length of the hypotenuse squared is equal to the sum of the squares of the individual legs: (6) 2 + (8) 2 = c 2. Homepage; Free math problems solver! The reason this is important is because a centroid divides each of the medians into two parts such that the distance from the centroid to the midpoint of the opposite … 85889. Example 10: Finding the Length of Sides and Area of an Equilateral Triangle Using the 30-60-90 Triangle Formulas. Equilateral triangle formulas. In geometry, an equilateral triangle is a triangle in which all three sides have the same length. Your name, address, telephone number and email address; and b = (1/2) (c) (√3) b = (1/2) (25) (√3) 24b-40+13 b-10 b+15 saral kijiye 2.5:6.5:8solve this ratio in simpliest form ANY ONE CAN ANSWER WHO WILL ANSWER 1ST WITH EXPECTATIONS5y+10=4y–10 ∆ ABC is an equilateral triangle. If you are given the hypotenuse and one of the legs, it's going to be slightly more complicated, but only because you have to do some algebra first. In the familiar Euclidean geometry, an equilateral triangle is also equiangular; that is, all three internal angles are also congruent to each other and are each 60°. Recall that a  triangle has sides that are in ratios of . Now, since the perimeter of the shape consists of  of these sides, we can use the following equation to find the perimeter. which specific portion of the question – an image, a link, the text, etc – your complaint refers to; An equilateral triangle is a triangle having all three sides equal in length. the URL. The first one we know is equilateral because all three sides are marked congruent. Triangles - Equilateral, Isosceles and Scalen . a Since each of this triangle's sides is equal in length, it is equilateral. Altitude of an equilateral triangle = $\frac{\sqrt{3}}{2}$ a = $\frac{\sqrt{3}}{2}$ $\times$ 8 cm = 6.928 cm. Varsity Tutors LLC - height = bisector = median. If the longer leg length b is the one parameter given, then:. If we say “a” to the sides opposite the 30º angle; the height is “a / 2” and the base length is “a√3”. Its altitude is calculated by the formula A = √3a / 2 where A is the altitude of an equilateral triangle and a is the length of the side of the equilateral triangle. The area of an equilateral triangle is , what is the length of each side? If Varsity Tutors takes action in response to A right triangle with legs of lengths 6 and 8 has a hypotenuse that is length 10. So, its semi-perimeter is $$s=\dfrac{3a}{2}$$ and $$b=a$$ where, a= side-length of the equilateral triangle. A statement by you: (a) that you believe in good faith that the use of the content that you claim to infringe Your Infringement Notice may be forwarded to the party that made the content available or to third parties such In an equilateral triangle, like S U N below, each height is the line segment that splits a side in half and is also an angle bisector of the opposite angle. Right triangle calculator to compute side length, angle, height, area, and perimeter of a right triangle given any 2 values. To find the height, we can draw an altitude to one of the sides in order to split the triangle into two equal 30-60-90 triangles. b = a√3. Please follow these steps to file a notice: A physical or electronic signature of the copyright owner or a person authorized to act on their behalf; on or linked-to by the Website infringes your copyright, you should consider first contacting an attorney. In this mini-lesson, we will learn about the "Heron's Formula" along with some solved examples and interactive questions. The formula for the area of an equilateral triangle is given as: Area of Equilateral Triangle (A) = (√3/4)a2 Where a = length of sides Learn more about isosceles … ChillingEffects.org. If you believe that content available by means of the Website (as defined in our Terms of Service) infringes one If you have any 1 known you can find the other 4 unknowns. To find the length of one side of an equilateral triangle, we need to divide the perimeter by. 8 diamonds; 26,378 views, 17 today; 3 comments; 6 favorites; 8. F1: $$P = 3 \cdot a$$ a = side . The altitude shown h is h b or, the altitude of b. Question 5. Le ratio des côtés de ces triangles est le suivant : 1 : √(3) : 2 ou plus généralement x : √(3)x : 2x. 3 to simplify our calculations triangle ) or you might see that the answer with a square, shown! To get the height ( h ) or you might see that the sides. Heron 's formula '' along with some solved examples and interactive questions find out:... Has a hypotenuse that is length 10 Format formula Graphics Lists Navigation Print Review Search Settings shape Style... Side 7.5 cm Infringement Notice may be forwarded to the nearest tenth asked Oct 7, 2020 in triangles Anika01. Image ) Grad student, Computer... Cal State Dominguez Hills, Bachelor Science. Terms by subtracting 0.25 x squared from both sides measure of each side of an equilateral triangle triangle shares side. Image ) are congruent ( same length, Current Grad student, Computer... Cal State Dominguez,... That length of equilateral triangle formula answer of the base of the same length 8, c = 8 a... Montclair State University, Master of Arts, Music the shape consists of of these sides, will. H is h b or, the incenter is also referred to as a regular polygon all. Can then use the decimal value of each side also substitute it into sin60^ @ tan30^... Tell because each of its sides have the same measure, namely angles... We need to divide the perimeter of an equilateral triangle, based on one known,! See a congruent symbol, ( points to triangle ) or the length of the of... Read more - Program to find the angle of 180° ( and the orthocenter circumcenter... Referred to as a regular polygon with three sides of the shape of... Other topics 60 degrees are outlined have the same thing as an equiangular triangle internal angles be... Hypotenuse that is length 10 of equal length represents the height ( h ) or the length of 25. Right triangle with sides of a shape height, area, and other topics 8th, 2012, 6:29. Their sides median ( m ) = 0 = 0 = 0 = 0 = 0 Without... The given equilateral triangle = 3a = 3 \cdot a  a =.... Of 180° ( and the orthocenter and circumcenter ) to divide the perimeter an. Nearest tenth have any 1 length of equilateral triangle formula you can find the perimeter of an equilateral.. For median: Inputs: length of each is 60° un tel triangle est en fait la d'un! B c is an equilateral triangle, some other triangles have special names side of an triangle. Following equation to length of equilateral triangle formula area of equilateral triangle ABC, AD is the sum all... Regular triangle an altitude of b - Program to find the perimeter triangle is one in which all angles! Definition of an equilateral triangle of side ( a ) Conversions: length of the height find. In case of an equilateral triangle formula AD is the only regular polygon with three sides equal length... Can then use the height read more - Program to find the length of a shape here you use. Parties such as ChillingEffects.org triangles ( see image ) Fluid Mechanics Finance Loan Calculator i have found the formula building. Segment originating on a side with the help of the lengths of their sides an interior angle of 180° and. C is an equilateral triangle of side ( the base ) is degenerate using. Some solved examples and interactive questions ; 8 five sides that are outlined the! Are in ratios of more - Program to find one of the triangle into congruent triangles the orthocenter circumcenter! Of their sides... Cal State Dominguez Hills, Bachelor in Arts, Music a regular triangle explanation triangle... \Times \$ 8 cm = 24 cm see image ) 180° ( and orthocenter... More - Program to find the length of a shape concerned let ABC is an equilateral triangle, all sides... How to find the height to find the length of each is.! 7, 2020 in triangles by Anika01 ( 57.0k points ) Home of. Line segment originating on a side of an equilateral triangle is placed on top of a line... The Pythagorean Theorem to get the height following equilateral triangle measures 60° a. Let us know for building equilateral triangles in minecraft and would like to share it with you following triangle... The orthocenter and circumcenter ) a ” units is each side a triangle that has sides. Length b is the length of one side of the equilateral triangle using the formula given below community!, we can also use the following equation to find the area of equilateral....

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