GoGeometry Action 63!

Author:Tim Brzezinski

Creation of this applet was inspired by a tweet from Antonio Gutierrez. Feel free to move any of the triangle's vertices anywhere you'd like. How can we formally prove what is informally illustrated here?

Quick (Silent) Demo

New Resources

Right Triangle Trig Ratios: sin, cos, tan
Proving Triangles Similar: Multistep Transformations
Inversión esférica de nudos: el nudo trébol y el nudo ocho
רישום חופשי
How to Draw a Cube in 2D

Discover Resources

Pythag
Graphing Equations
Value of Pi
Untitled
The Exponential Function

Discover Topics

Parametric Curves
Rhombus
Binomial Distribution
Line Segment
Bar Chart or Bar Graph