Question

Volume of 2 spheres are in ratio 64 isto 27.find the ratio of its surface areas

Answer 1

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Answer 2

radius of spheres willbe 4 and 3 by cancelling 4/3 × 22/7 / 4 /3 × 22 /7 ,because area of sphere = 4/3 × 22/7 × r×r×r. surface area of sphere is 4× 22/7 × r×r. After calculation we can infer that ratio of surface areas will be 16/9