Cut-The-Knot Action 9!

Auteur :Tim Brzezinski

Creation of this applet was inspired by a tweet from Alexander Bogomolny. Note the rectangles shown are similar to each other. How can you formally prove what this applet informally illustrates?

Nouvelles ressources

Open Education 2026
Parallel Lines & Related Angles: Quick Reminders
巧算長方形周界
Perimeter of a Rectangle with Unknown Sides
רישום חופשי

Découvrir des ressources

Parallel Lines and Transversals
Untitled
Figure 8 surface
IF4-04-P4b-CYU6-RQ4 Graph Absolute Value of a Linear Function
Parallel Through C

Découvrir des Thèmes

Equations
Probabilité
Fonctions Logarithmiques
Aire
Transformations Géométriques