Question

In this swimming pool design, explain how to find the area of the pool’s surface.

Answer 1

(l*w) - ((pi/2)*((l/2)^2)) or (8*10) - ((pi/2)((8/2)^2)) = 80 - 8pi

Explanation:

You find the area of the pool if it was a rectangle (l*w or 8*10)

From that, you subtract the area of the semicircle (pi/2*(l/2)^2 or pi/2*(8/2)^2)

So you get:

(l*w) - ((pi/2)*((l/2)^2)) or (8*10) - ((pi/2)((8/2)^2))

which equals 80 - 8pi

Answer 2

Sample response: Find the area of the rectangle. Then, find the area of the circle. The diameter is given, so take half that to get the radius. Multiply the area of the circle by half. Subtract the area of the half circle from the area of the rectangle.

Explanation:

hope this helped