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Mathematics

Grade9

Easy

Question

Find the surface area of the sphere with radius of 55cm

9160.88cm²
38013.27cm²
10305.99cm²
82447.96cm²

hint Hint:

The Surface area of the sphere is given by $4 cross times straight pi cross times left parenthesis radius right parenthesis squared$

The correct answer is: 38013.27cm²

$text Surface Area end text equals 4 pi r squared equals 4 cross times pi cross times 55 squared equals 12100 pi equals 38013.27 text centimeters end text squared$

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