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The diameter of a circle is 8 inches. What is the area? A. 8pi in ^2 B. 16pi in ^2 C. 32pi in ^2 D. 64pi in ^2
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5 votes
The diameter of a circle is 8 inches. What is the area?

A. 8pi in ^2
B. 16pi in ^2
C. 32pi in ^2
D. 64pi in ^2

User Joernsn
by
7.9k points

2 Answers

2 votes
A = 1/4 * (pi) * d^2
A = 1/4 * (pi) * 8^2
A = 1/4 * (pi) * 64
A = 1/4(64) * (pi)
A = 64/4 * (pi)
A = 16 (pi) in^2
User Jason Bunting
by
7.4k points
2 votes
i believe your answer is
B. 16pi in ^2
i could be wrong though
hope it helps!

User Bob Goddard
by
8.2k points
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