Question

A solid has a circular base of radius 3. If every plane cross section perpendicular the the x-axis is an equilateral triangle, then the volume is
a) 36
b) 12 sqr3
c) 18 sqr3
d) 24 sqr3
e) 36 sqr3

Answer 1

Do you know what your integral is going to look like?

Answer 2

Well I got the intergral \[\int\limits_{ }^{ }\pi r^2*\pi r^2 dr\]
but I am not too sure about it.