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3 years ago

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

Mathematics

1 answer:

devlian [24]3 years ago

7 0

Answer:

d = 10

Step-by-step explanation:

A = πr²

81 /π = r²

r² ≈ 25

r = 5

d = 5(2) or 10

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