Question

an equilateral is a 3-sided plygon in which all sides have the same length. Write a formula for the perimeter, P, of an equilateral triangle whos perimeter is 72 inches.

Answer 1

Lets a = side

A formula for the perimeter, P, of an equilateral triangle whos perimeter is 72 inches

P = 3a

72 = 3a

or

3a = 72

answer

3a = 72