my question is:

"prove that the volume of a frustrum of a sphere of height h and end radii r1 and r2 ,is 3.14h(3(r12+r22)+h2)/6."

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- October 16th 2006, 04:49 PMsonalvolume of a frustrum
my question is:

"prove that the volume of a frustrum of a sphere of height h and end radii r1 and r2 ,is 3.14h(3(r12+r22)+h2)/6." - October 16th 2006, 05:14 PMJameson
Here's a good explanation.

http://jwilson.coe.uga.edu/EMT725/Frustum/Formulas.html - October 17th 2006, 02:42 AMsonalfrustrum volume
sir,

I have tried to get the required answer by subtracting the volume of two hemispheres from the volume of the sphere,but didn't got it. if u can please help me once more,i'll be thankful to u.