Perspective (geometry)

Perspective (geometry)

In geometry, two triangles are perspective (or homologic) if, when the sides of each triangle are extended, they meet in three collinear points. The line which goes through the three points is known as the perspectrix. The triangles are said to be perspective from the line. [mathworld|title=Perspective Triangles|urlname=PerspectiveTriangles]

See also

* Collinear
* Desargues' theorem

References


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