find the radius of the sphere whose surface area is 256 cm(square)
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Answer:
Surface area of sphere = 4πr²
Step-by-step explanation:
Taking π as 22/7
4πr² = 256cm
4 x 22/7 x r² = 256
22/7 x r² = 256/4
22/7 x r² = 64
22 x r² = 64 x 7
22 x r² = 448
r² = 448/22
r² = 20.36
r = √20.36
r = 4.51cm (approx)
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