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Mathematics

Grade-7

Easy

Question

Determine the area of circle with a circumference of 56.52 yards.

124.25
56.52
102.6
89.12

hint Hint:

area of the circle = $πr squared$
circumference = $2 πr$

The correct answer is: 56.52

$C equals 2 pi r 2 pi r equals 56.52 2 cross times 3.14 cross times r equals 56.52 r equals fraction numerator 56.52 over denominator 6.28 end fraction straight r equals 9 text Area end text equals pi r squared equals 3.14 cross times 9 squared equals 3.14 cross times 81 equals 56.52 text square yards. end text$

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