Question

find the surface area of spere of radius 7cm ​

Answer 1

Sphere

Solve for surface area

A≈615.75cm²

r Radius

7

cm

Solution

A=4πr2=4·π·72≈615.75216cm²

A means Surface Area

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Answer 2

$hey \: mate \\ r = 7cm \\ csa = 4\pi \: {r}^{2} \\ csa = 4 \times \frac{22}{7} \times 7 \times 7 \\ = 616 {cm}^{2}$

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