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Cross Sections

A cross-section is a 2 -dimensional “slice” of a 3 -dimensional figure. Another way to think of it is finding the intersection of a 2 -dimensional plane and a 3 -dimensional figure.

For any given 3 -dimensional figure, the cross-section depends on the orientation of the plane or “slice”. For example, consider a cylinder . Various cross sections might result in a circle or rectangle, as shown below, or any of several other shapes.

Math diagram

Math diagram


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