Question

The perimeter of a rectangle is 64 feet. If one side of the rectangle has a length of 20 feet, how long is the other side?

Answer 1

other side is 12

Explanation:

Givens

Perimeter = 64 feet

L = 20

Formula

P = 2L + 2w Substitute Givens

64 = 2*20 + 2w Combine

64 = 40 + 2w Subtract 40 from both sides

64-40 = 40-40+2w Combine

24 = 2w Divide both sides by 2

24/2=2w/2

12 = w