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Find the area of the circle

Find the area of the circle-example-1
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User Hpoe
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1 Answer

2 votes

Answer:

cos 30° = 9√3 / d

d = 18 cm

r = d/2 = 18/2 = 9 cm

A = πr² = π•9² = 81π cm² or 254.47 cm²

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User Olof
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