Question

find the third side of a triangle if it is a equilateral triangle?​

Answer 1

Answer:

The sum of the sides or angles of a triangle is 180°. There are three sides in a triangle. In an equilateral triangle all the sides will be of equal measure. So we will divide the sum of sides of triangle by the number of sides of a triangle.

180° ÷ 3

=> 60°

All three sides have the same measure that is 60°.

hope it's gonna help you...☺

Answer 2

AnswEr :

✯ Sum of all Sides of a Triangle is 180°.

✯ Equilateral Triangle is a Triangle in which all the Three Sides are Equal.

• Let the Side of Equilateral Triangle be a.

➟ Sum of All Sides of Triangle = 180°

➟ a + a + a = 180°

➟ 3a = 180°

➟ a = $\large\tt{\frac{180°}{3}}$

➟ a = 60°

$\therefore$ Each Sides of Equilateral Triangle is 60°.