Answers

2016-03-03T16:42:20+05:30
Area of cone=pi×r(r+sqr root of h*2+r*2)
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2016-03-03T17:01:01+05:30
L sq=r sq+h sq
l=√(r sq+h sq)
l=√(64+225)
=√289
l=17
CSA of cone=pi*r*l
=22/7*8*17
CSA of cone =427.42cm sq
surface area of figure =2*CSA of cone
=2*427.42
surface area=854.84
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