Question

Find the surface area of a sphere whose radius is 6.3 cm

Answer 1

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Answer 2

Answer:

498.96 cm 2

Step-by-step explanation:

Radius of sphere,

r=6.3 cm

Volume of sphere = 4/3πr3

4/3π ×(6.3)3

4/3 × 22/7 × (6.3)3

1047.816 cm 3

Surface area of sphere =4πr2

=4× 22/7 ×(6.3) 2 =498.96 cm 2