The radius of a hemisphere is 7 cm, then its surface area is ……………cm^2 A) 10 B) 150 C) 300 D) 462
The radius of a hemisphere is 7 cm, then its surface area is ……………cm2
A) 10
B) 150
C) 300
D) 462
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Correct option is: D) 462
Radius of hemisphere is r = 7 cm
\(\therefore\) Surface area of hemisphere = \(3 \pi r^2\)
= 3 \(\times\) \(\frac {22}7\) \(\times\) 7 \(\times\) 7 \(cm^2\)
= 462 \(cm^2\)
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