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Mathematics

Grade9

Easy

Question

Calculate the surface area of the sphere with diameter of 7.3cm.

140.06cm²
804.25cm²
167.42cm²
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: 167.42cm²

$text Surface Area end text equals 4 pi r squared equals 4 cross times pi cross times 3.65 squared equals 53.29 pi equals 167.42 text centimeters end text squared$

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