Question

If the pool is 25 feet long and 20 feet wide, find the area of the pool and deck.

Answer 1

area of pool= 25*20= 500

Answer 2

What about the deck then?

Answer 3

Do you know how to do it in FOIL? For example: A contractor is building a deck around a rectangular swimming pool. The deck is x feet from every side of the pool. Write an expression for the total area of the pool and deck.

Area = length · width = (2x + 20)(2x + 15)
= (2x)(2x) + (2x)(15) + (20)(2x) + (20)(15) =4x2 +30x+40x+300 =4x2 +70x+300

So, the total area of the deck and pool is 4x2 + 70x + 300.