Find the surface area of a sphere of diameter 14 cm. - Vidyadip

Question

Find the surface area of a sphere of diameter 14 cm.

✓

Answer

Diameter = 14 cm
∴ Radius (r) = $14\over2$ cm = 7 cm
Surface area of sphere = ^{$4\pi r^2$}
= 4×$22\over7$ × (7)² = 616 cm²

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