If an isosceles triangle has a perimeter of 100 cm, and a base length of 28cm, what is the length of each leg?

Answer 1

An isosceles triangle is a triangle that has two legs of equal length.

Mark legs of equal length wit x

Perimeter is sum of the sides.

x + x + 28 = 100

2 x + 28 = 100

2 x = 100 - 28 = 72

x = 72 / 2 = 36

x = 36 cm