Calculus
posted by George .
Find the volume of the solid generated by revolving the region enclosed in the triangle with vertices (4.6,4.6), (4.6,0), (6.7,4.6) about the xaxis.

I visualize a cylinder with a radius of 4.6 and a height of 4.6 with a cone of radius 4.6 and height of 2.1 removed.
so vol = pi(4.6)^2(4.6)  1/3(pi)(4.6^2)(1.2)
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