Question

A square and a rectangle have the same perimeter. The length of the rectangle is

4 in. less than twice the side of the square, and the width of the rectangle is 6 in.
less than the side of the square.
Find the perimeter of the square.

Answer 1

Rectangle:

l = 4 inch

b = 6 inch

Perimeter = 2(l + b)

= 2(4 + 6)

= 2(10)

= 20 inch.

Given that,

The perimeter of the rectangle = The perimeter of the square

20 inch = The perimeter of the square