Answers

2015-01-13T22:04:14+05:30
Curved Surface Area of Cone= \pi rl
r =radius
l =slant lengh
Surface Area of Cone=  \pi r(r+l)
Volume of Cone = 1/3  \pi  r^{2} l

If 'l' is not given l= \sqrt{} r^{2}+ h^{2}
similarly r =  \sqrt{} l^{2}- h^{2}
h= \sqrt{} l^{2}-  r^{2}
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2015-01-13T22:10:01+05:30

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The following are the formulae related to Right Circular Cone.

Base\ circle\ radius=r\\Height=H\\slanting\ height=L\\\\Area\ of\ base=\pi r^2\\L^2=H^2+r^2\\Volume=\frac{1}{3}\pi r^2 L\\Surface\ area:\ lateral = \pi r L,\\Total\ surface\ area=\pi r (r+L)\\circumference\ of\ base=2 \pi r\\

Center of mass is at 1/3 H from the base.

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