A) 3017.1
B) 3170
C) 301.7
D) 30.17
Correct Answer: C
Solution :
Height (h) = 2.8 m Slant height \[l=\sqrt{{{r}^{2}}+{{h}^{2}}}\] \[=\sqrt{{{(9.6)}^{2}}+{{(2.8)}^{2}}}\] \[=\sqrt{92.16+7.84}\] \[=\sqrt{100}=10\,\,\text{m}\] \[\therefore \]Required area = Curved surface area \[=\pi rl\] \[=\frac{22}{7}\times 9.6\times 10\]sq m = 30.17 sq mYou need to login to perform this action.
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