Question

Randal's dad is installing a new pool in their backyard. The pool is a square and has an

area of 121ft? Randal's dad will then build a 4 ft wide deck to surround the pool.
What is the outside perimeter of the deck?

Answer 1

76 feet.

Explanation:

The side of the pool = square root of 121 = 11 feet.

With the deck the length of 1 side will be 11 + 2 *4 = 19 feet.

There are 4 sides in the outside perimeter so the answer:

= 4 * 19 = 76 feet.