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What is the diameter in inches of a circle that has an area of 81
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25 votes
What is the diameter in inches of a circle that has an area of 81

User Adrion
by
3.0k points

1 Answer

10 votes

Answer:

d = 10

Explanation:

A = πr²

81 /π = r²

r² ≈ 25

r = 5

d = 5(2) or 10

User Maarvd
by
4.1k points
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