Cones
A cone is like a pyramid except that its base is a circle instead of a polygon. A right cone is a cone in which the line from the apex to the center of the base is perpendicular to the base. As with pyramids, cones have an altitude (perpendicular from the apex to the base) and right cones have a slant height which is a segment from the apex to the circumference of the base.
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Date last modified: May 28, 2009.
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