Question

The surface area of a sphere is 616 cm² . Find its radius.

Answer 1

Answer:

The Radius of the sphere is 7 cm.

Step-by-step explanation:

SOLUTION :  

Given :  

Surface area of sphere ,S = 616 cm²

We know that, Surface area of the sphere , S = 4πr²

616 = 4 × 22/7 × r²

616 × 7 = 88 r²

r² = (616 ×7) /88

r² = 7 × 7  

r = √7 × 7

r = 7 cm

Hence, the Radius of the sphere is 7 cm.

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Answer 2

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