Find the volume and the surface area of the sphere whose radius is 7cm
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volume of sphere = 4/3 pie r^3
= 4/3×22/7×7×7×7
now calculate ok .
surface area = 4pier^2
4×22/7×7×7
= now calculate.
= 4/3×22/7×7×7×7
now calculate ok .
surface area = 4pier^2
4×22/7×7×7
= now calculate.
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