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

Neue Materialien

Area of a Circle Illustrated
Superellipse
seo tool
Classifying Triangles
Slope Between 2 Points (Phase 2)

Entdecke Materialien

HKMO1112GCQ2
Trigonometry at any angle
ZachMeisner_PerpBisectors
Tutorial: Create lists of numbers and objects

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