Geodesic
A Note on Similar-Perspective Triangles
Journal for geometry and graphics, Tome 10 (2006) no. 2, pp. 133-136 Cet article a éte moissonné depuis la source Heldermann Verlag

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An old theorem of F. E. Wood states that if two triangles in the Euclidean plane are directly similar and perspective from a point then either their sides are parallel in pairs or their circumcircles pass through the point of perspectivity. In this note, we give a simple proof using complex numbers and the notion of triangle shape.
Classification : 51M04
Mots-clés : Similar perspective triangles, Wood's theorem, triangle geometry 
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     author = {M. Hajja and H. Martini },
     title = {A {Note} on {Similar-Perspective} {Triangles}},
     journal = {Journal for geometry and graphics},
     pages = {133--136},
     year = {2006},
     volume = {10},
     number = {2},
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M. Hajja; H. Martini . A Note on Similar-Perspective Triangles. Journal for geometry and graphics, Tome 10 (2006) no. 2, pp. 133-136. http://geodesic.mathdoc.fr/item/JGG_2006_10_2_JGG_2006_10_2_a1/