Desargues' Theorem in 2D and 3D

Author:Steve Phelps

If the three straight lines joining the corresponding vertices of two triangles meet in a point (the perspector) then the three intersections of pairs of corresponding sides are lie on a line (the perspectrix).

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JLA Eri Chan
JLA Copy of ANSHS_BascoAlyana
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Curves
Nobody Likes to Be a Circle Either

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T2 ex 42B
Triangle App
Circumcircle of the triangle
AngleSideSide-Grace&Sela
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Addition
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