Question

The curved surface area of a right circular cone of height 15 cm and base diameter 16
cm is ....
(A) 130 cm^ (B) 146cm^ (C) 136 cm^
(D) 90cm^​

Answer 1

Answer:

h = 15 cm, r = 8 cm

So,

l=r2+h2−−−−−−√=82+(15)2−−−−−−−−√=17cml=r2+h2=82+(15)2=17cm

∴ Curved surface area :

=πrl=(π×8×17) cm2=136π cm2

Answer 2

Answer:

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