Cut-The-Knot Action 9!

Author: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?

New Resources

အခြေခံ data အခေါ်အဝေါ်များ
רישום חופשי
Linear Approximations
畫三角形
從邊長辨認四邊形

Discover Resources

rectangle two jacob
isolated point alone, not missing
Unit 12
Quadrilateral Exploration Activity
Introduction to Trigonometry
Ball Drop

Discover Topics

Addition
Multiplication
Interest Calculation
Power Functions
Planes