A. 16
B. 64
C. 200.96
D. 32
Set the area equal to the formula for the area of a circle:
64pi = pi r ^2
Divide by pi:
r^2 = 64
r = 8
We're not done! We only found the radius. Since the diameter is twice the radius, then:
8(2) = 16
Miss Kristin
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Verified answer
Set the area equal to the formula for the area of a circle:
64pi = pi r ^2
Divide by pi:
r^2 = 64
r = 8
We're not done! We only found the radius. Since the diameter is twice the radius, then:
8(2) = 16
Miss Kristin