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Mathematics

Grade9

Easy

Question

Find the surface area of the sphere with diameter of 43cm.

5000.06cm²
804.25cm²
5808.80cm²
2144.66cm²

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: 5808.80cm²

$text Surface Area end text equals 4 pi r squared equals 4 cross times pi cross times 21.5 squared equals 1849 pi equals 5808.80 text centimeters end text squared$

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