Q. 705.0( 2 Votes )
The total surface A. (588π) cm2
B. (392π) cm2
C. (147π) cm2
D. (98π) cm2
Given: Radius of the hemisphere: 7cm .
TSA of the hemisphere is given by: 3πr2
Let S be the TSA of the hemisphere.
∴ S = 3πr2
⇒ S = 3 × π × (7)2 = 147π cm2
∴ TSA of the hemisphere is 147π cm2
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