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What is the radius of a circle with an area of 32.1 square feet? A. 5.23 ft. B. 3.20 ft. C. 4.75 ft. D. 10.22 ft.
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What is the radius of a circle with an area of 32.1 square feet?

A. 5.23 ft.
B. 3.20 ft.
C. 4.75 ft.
D. 10.22 ft.

User Pablo Flores
by
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2 Answers

7 votes
B..............................
User Ned Howley
by
6.4k points
1 vote
A = π·r² ⇒
r²= A/π = 32.1/3.14 ≈ 10.22 ⇒
r = √10.22 ≈ 3.20 ft.

Answer: B. 3.20 ft.
User Makapuf
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7.8k points
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