Question

If the perimeter of an equilateral triangle is 81 cm. Find the length of its side​

Answer 1

Answer:

perimeter of triangle = 3×side

81 = 3×side

side = 81/3

side = 27

I hope it helps you!

Answer 2

Let side of ∆ be x

Perimeter of equilateral∆ = side+side+ side

81cm = x+ x+x

81= 3x

x= 81/3

x= 27