Answer:
2544 ft
Explanation:
First, find the area of the pool.
A= πr²
if we fill in the radius, use 3.14 for pi, and solve for A, that's
A=(3.14)(20.5)²≈1319.585
The area of the pool is roughly 1319.585 ft
Now, we find the area of the triangle
A=(ab)÷2
put in 'a' and 'b' (the triangle legs) and solve
A=(84×92)÷2=3864
Finally, subtract the area of the pool from that of the triangle
3864-1319.585=2544.415 which rounds to 2544 ft
hopefully that helps and you might want to double check but that's what I got :)