Perimeter of equilateral triangle: In geometry

In geometry, an equilateral triangle is a triangle that has all its sides equal in length. Since the three sides are equal therefore the three angles, opposite to the equal sides, are equal in measure. Therefore, it is also called an equiangular triangle , where each angle measure 60 degrees. Just like other types of triangles , an equilateral triangle also has its area, perimeter and height formula. Let us learn more in this article. Equilateral Triangle Formulas An equilateral triangle is a triangle for which the measure of all sides is equal and all its angles measure 60º. Equilateral triangle formulas are used to calculate the perimeter , area and height,of an equilateral triangle . Formula to find the perimeter of an equilateral triangle is P = 3a, where P is the perimeter and a is the side length. In the above triangle the length of the side is 8 cm, therefore the perimeter is 3 × a = 3 × 8 = 24 3 × a = 3 × 8 = 24 cm. So, the perimeter of an equilateral triangle is 3a, where "a" is the side length of the triangle . In the figure given above, ∆ABC is an equilateral triangle with equal sides that measures "a" unit.