Quadrilateral Surprise!

Autor: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

Nuevos recursos

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גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
Limits in 3D
SSS Congruence Theorem

Descubrir recursos

Dividing two complex numbers
test105
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la pass templates
Temperature vs. Time - Exponential 1
Directrix and Focus

Descubre temas

Superficie
Prisma
Figuras planas
Funciones exponenciales
Simetría