Question

The perimeter of a rectangle is 48 feet. If the length measures 16 feet, which is the width?

A. 5ft

B. 8ft

C. 10ft

D. 16ft

Answer 1

B. 8ft

Explanation:

The perimeter of a rectangle is given by

P = 2(l+w) where l is the length and w is the width

Substituting in the given values

48 = 2(16+w)

Divide each side by 2

48/2 = 2/2(16+w)

24 = 16+w

Subtract 16 from each side

24-16 =16+w-16

8 =w