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A solid sphere of radius r fits exactly inside a cube. What is the surface area of the sphere alone?

Class 10Surface Area of Combined SolidsMensuration

A $4 * p i * r^{2}$
B $6 * p i * r^{2}$
C $3 * p i * r^{2}$
D $2 * p i * r^{2}$

Step-by-Step Solution

A complete sphere always has surface area 4*π*

r^{2}

regardless of any surrounding cube.

Answer: A)

4 * p i * r^{2}

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