Planar figure
A planar figure resides entirely in a 2-dimensional plane. Polygons and circles are examples of planar figures, while cubes and nondegenerate tetrahedra are not.
See also
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A planar figure resides entirely in a 2-dimensional plane. Polygons and circles are examples of planar figures, while cubes and nondegenerate tetrahedra are not.
This article is a stub. Help us out by expanding it.
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