Question

find the surface area of a sphere having radius 7 cm is equal to 22 upon 7​

Answer 1

surface area of sphere=4πr^2

4×22/7×7^2

=88×7

=616cm^2

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Answer 2

Surface area of sphere

$4\pi {r}^{2}$

Here

r=7.

So,

TOTAL surface area

$(4 \times 22 \times 7 \times 7) \div 7 \\ = 4 \times 22 \times 7 \\ = 88 \times 7 \\ = 616$

Therefore, the total surface area of the sphere is 616 CM square.

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