Question
The curved surface of a right circular cone of height 15 cm and base diameter 16 cm is :
Answer: Option D
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h = 15 cm, r = 8 cm.
S0 `l = sqrt(r^2 + h^2)`
=`sqrt(8^2 + (15)^2)` = 17 cm.
`:.` Curved surface area = `pi r l = (pi xx 8 xx 17)cm^2`
= `136 pi cm^2`
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