#Yahoo! Answers: Answers and Comments for What's a "cross section?
What's a "cross section?
   For example, surface area of a cross section. It can't just mean the intersecting point.
   If you take a three dimensional object and imagine slicing it with a straight plane, the resulting shape is the cross section.
   For example if you had a cake (a wide, flat cylinder) and sliced it parallel to the table, the cross section would be a circle.
       In statistics, a cross-section is a data sample that is typical of the entire population.
       If you had a shpere, you cut it right down the middle and get a flat surface. That would be a cross section.
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