Homework Help: please help this is a geometry question

Posted by Knights on Wednesday, December 5, 2012 at 7:09pm.

An equilateral triangle of side 14 centimeters is revolved about an altitude to form a cone. What is the number of cubic centimeters in the volume of the cone? Express your answer to the nearest whole number, without units.

I have tried solving this but it is hard how to imagine it...is the side like 14 in????

please help this is a geometry question - bobpursley, Wednesday, December 5, 2012 at 7:21pm
Volume of any right cone is 1/3 base area*height

volume=PI*7^2*(7*sqrt3)

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