Question

The curved surface area of a right circular cone of height 15cm and base diameter 16cm is

A - 60πcm2
B - 68πcm2
C - 120πcm2
D - 136πcm2​

Answer 1

Answer:

Option C : 120 cm²

Step-by-step explanation:

$\implies$ $\sf{CSA=πrh }$

$\implies$ $\sf{CSA=π×8×15 }$

$\implies$ $\sf{CSA=120πcm^2 }$

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Answer 2

Answer:

136

Step-by-step explanation:

height =15cm

diameter=16cm

radius= 16/2

=8cm

slant height=

$\sqrt{ {15 + 8}^{2} }$

$\sqrt{225 + 64}$

$\sqrt{289}$

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