Question

Lee's uncle is installing a new pool in his backyard. The pool is a square and has an area of 121ft^2. He decides to build a 4 ft wide deck to surround the pool. What is the outside perimeter of the deck? The small square is the pool and the deck is the big square

Answer 1

Answer: 76 feet

Explanation:

Given: The pool is a square and has an area of
`121ft^2`.

We know that , area = side²

⇒ side= √area

⇒ side= √121=11 feet

Width of deck =4 feet

Length of deck around pool = 11+4+4 = 19 feet

Outside perimeter of deck = 4 (19) = 76 feet [since perimeter of square = 4 (side)]

Hence, Outside perimeter of deck = 76 feet