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January 30, 2015

January 30, 2015

Posted by **Roy** on Sunday, March 15, 2009 at 9:59pm.

- Please help Math -
**Reiny**, Monday, March 16, 2009 at 1:04amvolume of cone = (1/3)pi(r^2)h

but h=2r

or r = h/2

then volume = (1/12)pi(h^3)

dV/dt = (1/4)pi (h^2) dh/dt

20 = (1/4)pi (23^2)dh/dt

etc

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