Simson's line

Auteur :Terry Tam

P is a point on a circle, and ABC is an inscribed triangle. Prove that the feets of altitudes of point P on 3 sides of the triangle are collinear. (Hint: Consider PABC as a cyclic quadrilateral)

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Pythagorean Theorem: Extension Exercises
Congruent Sides & Angles in △s: Exploration
bewijs stelling van Pythagoras
Pythagorean Theorem: Quick Illustrator

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Coxeter- Figure 7.7B
Summative iAVERY
Solid with Circular Base & Cross Section Square
problem
Joseph Suarez
Parábola: definición

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Rotation
Cube
Moyennes
Problèmes d'Optimisation
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