Question

The area of the pool when viewed from above is approximately 78.5 m2. What is the radius of the pool? (Use 3.14 for pi.)

5 m


11 m


6 m


12 m

Answer 1

Explanation:

I guess it is a circular pool.

the area of a circle is

pi×r²

in our case we know

pi×r² = 78.5

3.14×r² = 78.5

r² = 78.5/3.14 = 25

r = 5 m