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Complete Quadrilateral

Revision as of 13:46, 9 December 2022 by Vvsss (talk | contribs) (Created page with "==Complete quadrilateral== Let four lines made four triangles of a complete quadrilateral. In the diagram these are <math>\triangle ABC, \triangle ADE, \triangle CEF, \triangl...")
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Complete quadrilateral

Let four lines made four triangles of a complete quadrilateral. In the diagram these are $\triangle ABC, \triangle ADE, \triangle CEF, \triangle BDF.$ One can see some of the properties of this configuration and their proof using the following links.

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