Quadrilateral Surprise!

Autore: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

Nuove risorse

Torus
Dividing a 2-digit number by a 1-digit number (2)
z`]]
apec
רישום חופשי

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hexagon
Midline in Quadrilateral
TRANSLASI
Bài tập 6a trang 126

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Ortocentro
Dilatazione
Vettori 3D (tridimensionali)
Vettori
Operazioni aritmetiche