A) \[93.62\]
B) \[103.62\]
C) \[113.62\]
D) \[115.50\]
Correct Answer: B
Solution :
Surface area of Toy = curved surface area of cone + curved surface area of hemisphere CSA of cone \[=\pi \,rl\] \[=3.14\times 3\times \sqrt{{{4}^{2}}+{{3}^{2}}}\,\,\,(l=\sqrt{{{r}^{2}}+{{h}^{2}}})\] \[=3.14\times 3\times 5=15\times 3.14\] CSA of hemisphere \[=2\,\,\pi \,\,{{r}^{2}}\] \[=2\times 3.14\times {{(3)}^{2}}=3.14\times 18\] surface area of Toy \[=3.14\times 15+3.14\times 18\] \[=3.14\times 33=\]You need to login to perform this action.
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