For a right circular cone of volume $V$, slant height $l$, base radius $r$, height $h$, semi-vertical angle $\alpha$, wh

Question

For a right circular cone of volume $V$, slant height $l$, base radius $r$, height $h$, semi-vertical angle $\alpha$, which formula gives the curved surface area $S$?

Accepted Answer

$S = \dfrac{\pi h^2 	an\alpha}{\cos\alpha}$

Answer

$S = \pi r^2$

Answer

$S = \pi r h$

Answer

$S = \dfrac{1}{3}\pi r^2 h$

For a right circular cone of volume VVV, slant height lll, base radius rrr, height hhh, semi-vertical angle α\alphaα, which formula gives the curved surface area SSS?

For a right circular cone of volume $V$ , slant height $l$ , base radius $r$ , height $h$ , semi-vertical angle $\alpha$ , which formula gives the curved surface area $S$ ?