Question

The sum of two sides of an equilateral triangle is 12cm. What is its perimeter? *

Answer 1

Answer:

Let, side of equilateral Δ x

sum of two sides of an equilateral Δ =12cm

2x = 12

x = 12/2

x = 6

Perimeter of equilateral Δ = x+x+x

= 6+6+6

= 18cm