1 Find the surface area of a sphere of radius 21 cm. – InterviewSolution

1.	1 Find the surface area of a sphere of radius 21 cm.
Answer» :-Surface Area of SPHERE = 5544 cm²Given :-Radius of sphere = 21 CMTO Find :-Surface Area of Sphere = ?Explanation :-As we KNOW, FORMULAE of surface area of sphere isNow Substituting the values,Hence, the surface area of sphere is 5544 cm²@Agamsain

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