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valentinak56 [21]
3 years ago
10

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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