Cut-the-Knot-Action 13!

Author:Tim Brzezinski

Creation of this applet was inspired by a tweet from Alexander Bogomolny. LARGE points are moveable at any time. How can you formally prove what this applet informally illustrates?

New Resources

Here comes the sun!
Spherical dodecahedron/icosahedron
အခြေခံ data အခေါ်အဝေါ်များ
Vectors and Components - Trig
רישום חופשי

Discover Resources

Ladder Problem 4
trig graphs
pg 50 #6
Exploring Mathematics

Discover Topics

Inequalities
Normal Distribution
Arithmetic
Median Line
Equations