Question

A rectangle is 21 meters long and 11 meters wide.

What is the perimeter of this rectangle?


32 m

42 m

64 m

84 m

Answer 1

P = 2(l+w)

= 2 ( 21+11)

= 2(32)

= 64m

Answer 2

P = 64 meters

Explanation:

P = 2(l+w) for a rectangle

Substitute in the length and the width

P = 2( 21+11)

P = 2( 32)

P = 64 meters