Incircle, Excircle, Altitude

Autore:Steve Phelps

The center of incircle, tangent point of excircle, and midpoint of altitude are collinear. The center of excircle, tangent point of incircle, and midpoint of altitude are collinear.

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Building Parallelograms with Set Areas
Building Figures with Set Areas
Perimeter of Rectangle
bewijs stelling van Pythagoras
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Reflection in the line y=x
ludo
tan cir
Congruence
Intro-Equilateral

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Analisi
Equazione differenziale
Media
Equazioni
Funzioni quadratiche