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

seo tool
z`]]
apec
Pendulum Snake
Vector Valued Functions

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MAS400 Hyperbolic paraboloid
Parking 1
Angles
Bacteria II

Discover Topics

Linear Functions
Combinatorics
Symmetry
Planes
Equilateral Triangles