Question

The surface area of a sphere of a radius 7 cm is

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Answer 1

Answer:

In formula π is a constant and its value is 227 or 3.14. Hence the surface area of the given sphere is 616cm2.

Answer 2

Answer:

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Step-by-step explanation:

Surface area (A) of a sphere

A = 4πr^2

A = 4 x 22 x 7 x 7

7

A = 88 x 7

A = 616 ${cm}^{2}$

Hence The surface area of a sphere of a radius 7 cm is 616 ${cm}^{2}$

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