Posted by **ADVANCED GEOM** on Saturday, December 8, 2012 at 2:57pm.

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.

how do we do this?!

- please help if you CAN I DONT UNDERSTAND! -
**Anonymous**, Saturday, December 8, 2012 at 3:00pm
What is the formula for area of cone?

- please help if you CAN I DONT UNDERSTAND! -
**Steve**, Saturday, December 8, 2012 at 4:47pm
or, more to the point, the volume of the cone is

1/3 pi r^2 h

you can figure r and h easily enough.

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