Question

The surface area of spheare of radius (r) and cube of side (a) are equal then r=​

Answer 1

Surface area of sphere = 4pier²

Surfave area of cube = 4a²

4peir²=4a²

22/7r²= a²

r= a√ 22/7

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Answer 2

surface area of sphere = 4πr^2

surface area of cube= 6a^2

Acc to question,

4πr^2=6a^2

then,

r=a(√3/2π)