Question

find the perimeter of an equilateral triangle with its side measuring 7.2 metre

Answer 1

An equilateral triangle has equal sides.

perimeter = 3*7.2 = 21.6m

Answer 2

Here is your solution

Given:-

side of the equilateral triangle =7.2m

perimeter of equilateral triangle  = ?

NOW

WE KNOW THAT

perimeter of equilateral triangle = 3× side

= 3×7.2m

= 21.6m

Hence perimeter of equilateral triangle is 21.6m