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The surface area of a sphere is 616 cm². The volume of the sphere would be :
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1437 1 cm² 3 - 2100 cm²
- 2500 cm²
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1225 3 cm² 5
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Correct Option: A
Surface area of sphere = 4πr²
⇒ 4πr² = 616
| ⇒ 4 × | × r² = 616 | |
| 7 |
| ⇒ r² = | = 49 | |
| 4 × 22 |
⇒ r = √49 = 7 cm
| ∴ Volume of sphere = | πr³ | |
| 3 |
| = | × | × 7 × 7 × 7 | ||
| 3 | 7 |
| = | = 1437 | cu.cm. | ||
| 3 | 3 |
