You are resurfacing your backyard pool. the pool is in the shape of a rectangular prism with a length of 20 ft, a width of 10 ft, and a depth of 4 ft. how many square feet of the resurfacing paint will you need?

Step-by-step explanation:

we know that

The area of the backyard pool to be resurfaced is equal to the area of the base plus the area of its four lateral sides.

so

where

B is the area of the base

P is the perimeter of the base

H is the depth of the pool

Find the area of the base B

substitute the given values

Find the perimeter of the base P

substitute the given values

we have

Find the area of the backyard pool to be resurfaced

substitute the values