V = (1/3*Pi*h) * (R. 1. 2. R. 2. 2. R. 1. * R. 2. Where R1 and R2 are the radii of the bases, and h is equal to the height of the truncated cone.
http://wiki.answers.com/Q/What_is_the_formula_for_...

Imagine having the whole cone  then the volume = (1/3)piR^2H; from that you cut off the top (which is another cone) with a volume of (1/3)pir^2h so the volume of the part left =
http://answers.yahoo.com/question/index?qid=201305...

It is one third the area of the base times the height divided by three. That is the simple answer. Why is a completely different animal.
http://answers.ask.com/Science/Other/how_to_find_t...
