The radius of a sphere is 3.5 cm find its surface area and volume
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Step-by-step explanation:
TSA of sphere = 4πr²
= 4 × 22/7 × 3.5 × 3.5
= 4 × 22 × 0.5 × 3.5
= 154 cm²
Volume of sphere = 4/3 πr³
= 4/3 × 22/7 × 3.5 × 3.5 × 3.5
= 3773/21
= 179.67 cm³
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