A) 562 \[{{m}^{2}}\]
B) 792 \[{{m}^{2}}\]
C) 692 \[{{m}^{2}}\]
D) 600 \[{{m}^{2}}\]
Correct Answer: B
Solution :
(b): \[TSA=\pi rl+\pi {{r}^{2}}\] \[\pi r+\pi {{r}^{2}}\] \[=\frac{22}{7}\left[ 12\times 9+{{12}^{2}} \right]\] \[=\frac{22\times 12}{7}\times 21=22\times 12\times 3=792.\]
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