asked 185k views
25 votes
What is the diameter in inches of a circle that has an area of 81

asked
User Adrion
by
8.4k points

1 Answer

10 votes

Answer:

d = 10

Explanation:

A = πr²

81 /π = r²

r² ≈ 25

r = 5

d = 5(2) or 10

answered
User Maarvd
by
8.4k points

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