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

Nowe zasoby

Rule of Sarrus - Determinant of a 3×3 Matrix
အခြေခံ data အခေါ်အဝေါ်များ
Circumference of a unit circle
Other Variations of Cosine
Limaçons

Odkryj zasoby

Transformations Stations
Rollercoaster
Jordan
Modul 18A_Wa Ode Eva Devianti_SMAN 2 Baubau
Minu Pilt

Odkryj tematy

Parabola
Romb
Symetria
Funkcje trygonometryczne
Symetria