Quadrilateral Surprise!

Auteur :Tim Brzezinski

How would you put this property (dynamically illustrated below) into words? (Applet works best if quadrilateral is kept convex.) How can you formally prove what this applet informally illustrates?

Quick (Silent) Demo

Nouvelles ressources

Building Trapezoids with Set Areas
Focus and Directrix
Perimeter of Rectangle
apec
רישום חופשי

Découvrir des ressources

Reflections of points
Rama principal del logaritmo complejo
Untitled
Ryan Delea Tesselation
day 94

Découvrir des Thèmes

Rectangle
Points Spéciaux
Pyramide
Sections Coniques
Valeur Attendue