The total surface area of a hemisphere of radius 7 cm is

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Solution

Q.
The total surface area of a hemisphere of radius 7 cm is:

1 $588 π c m ²$

2 $392 π c m ²$

3 $147 π c m ²$

4 $98 π c m ²$

Ans.
(3)

Here, R = 7cm

Total surface area of hemisphere:

$= 3 π R^{2} = (3 π \times 7 \times 7) {cm}^{2} = 147 π {cm}^{2}$

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