Quadrilateral Surprise!

Author: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

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רישום חופשי
seo tool
အခြေခံ data အခေါ်အဝေါ်များ
Forming Similar Triangles
Colors for GeoGebra

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assignment 5
Function transformation practice 3.1.2016
Parallel lines
Intersecting Secants
Express the solution of an inequation

Discover Topics

Fractal Geometry
Differential Equation
Rotation
Linear Functions
Histogram