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5 votes
Circle has diameter 10. What's the area?

a
50π
b
20π
c
100π
d
25π

1 Answer

4 votes

Answer:

D) 25π

Explanation:

Area of a circle formula:

A = πr²

r = d/2 = 5

Work:

A = πr²

A = π5²

A = 25π