If the total surface area of solid sphere is 98.56 cm square then find the radius of the sphere.
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Answered by
68
total surface area of sphere = 4πr²
98.56 cm² = 4πr²
r² = 7.84
r = 2.8 cm
98.56 cm² = 4πr²
r² = 7.84
r = 2.8 cm
Answered by
44
TSA = 4πr² = 98.56 cm²
r² = 98.56 × 7÷ 22 × 4 = 7.84cm ⇒ r = 2.8 cm
r² = 98.56 × 7÷ 22 × 4 = 7.84cm ⇒ r = 2.8 cm
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