Posted by Erica on .
The base of a solid is a circle of radius a, and its vertical cross sections are equilateral triangles. The volume of the solid is 10 cubic meters. Find the radius of the circle.

Calc 
drwls,
It sounded at first as if your solid is a cone, but not all vertical sections of a cone are triangles. Most are hyperbolas. I cannot visualize your figure.