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March 6, 2015

March 6, 2015

Posted by **Eleanor** on Saturday, November 17, 2012 at 10:42am.

The cylinder has base radius 2x and height 9x.

E cylinder is melted down and made into a sphere of radius r.

Find the expression for r in terms of x.

- Math -
**PsyDAG**, Saturday, November 17, 2012 at 11:47amV = πr^2h = π(2x)^2(9x) = 4/3πr^2

This is volume of the cylinder and volume of the sphere. You can simplify this.

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