Cone volume

[C Raghav]

We get cone if we revolve Right angle triangle along its height

the area of Right angles triangle is 1/2(H)B

in cone, B= Radius ® and angle of revolution is 360(2pi)

if we integrate Area of right angled trianglelimits 0 to 2pi, can we achieve volume of cone?

 

0-> 2pi Int 0.5 r h

[doG]

http://mathworld.wolfram.com/Cone.html Your integration is about 1/2 way down the page.

[John Cuthber]

Or you can do it the easy way.