The total surface area of a solid hemisphere is 1039.5 cm2. The volume (in cm3) of the hemisphere is: (Take π = 22/7)
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 2425.5
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Understanding |
Application |
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Total surface area of a solid hemisphere is 1039.5 cm2 |
So, 3πr2 = 1039.5 3 × 22/7 × r2 = 1039.5 r2 = 110.25 r = 10.5 |
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Radius = 10.5 = 21/2 cm |
So, Volume of hemisphere: = 2/3 × π × r3 = 2/3 × 22/7 × (21/2)3 = 2425.5 cm3 |