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

拼砌四邊形 - 工作紙
רישום חופשי
Forming Similar Triangles
အခြေခံ data အခေါ်အဝေါ်များ
Question 6c

Discover Resources

JasminGTraparea
Forum
Werner -Test
Segment Copy ggb
Galileo 5
Sectionare piramida patrulatera

Discover Topics

Arithmetic Mean
Vectors
Upper and Lower Sum or Riemann Sum
Planes
Linear Regression