Question

Kayley needs to find the area of a circle. Which process should she use?

Answer 1

Find the radius then square it, and multiply by pie.
r = 3
π = 3.14159
a = πr2
a = π(3)2
a = π(9)
a ≈ 28.27

Explanation:

You just need to find the diameter of a circle, then halve it and plug in the information to the formula above.