If the diameter of a hemisphere is 14cm, then the total surface area of the hemisphere is
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Correct answer: B
Explanation
The correct answer is option 2 i.e. 462 cm2.
Radius (r) = 14/2 = 7 cm
Total surface area of hemisphere = 3πr2 = 3 × (22/7) × 72 = 462 cm2