10.2: Points, Lines, and Planes - Mathematics LibreTexts
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WEBJun 5, 2023 · A plane, as defined by Euclid, is a “surface which lies evenly with the straight lines on itself.” A plane is a two-dimensional surface with infinite length and width, and no thickness. We also identify a plane by three noncollinear points, or points that do not lie on the same line.
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