Given the perimeter of a rectangle and either the length or​ width, find the unknown measurement using the appropriate formula. The perimeter is 72 ft. and the width is 17 ft.

Question

help asap i need help for a ixl that is due to to get my grade up any answers?

Answer 1

2L + 2W = 72

2L + 2(17) =72

2L = 72 -34 = 38

L=38/2 = 19

L=19

Answer 2

Perimeter is

(2 x Length) + (2 x Width) = 72

plug in the width 17 feet into the equation above

(2 x Length) + (2 x 17) = 72

2 Length + 34 = 72

2 Length = 72 - 34

2 Length = 38

Length = 38/2

Length = 19 feet