GoGeometry Action 28! (Quick Angle Problem)

Author:Tim Brzezinski

Creation of this applet was inspired by a tweet from Antonio Gutierrez. What is the measure of the pink angle? How can you formally prove this to be true?

New Resources

Parallelogram Anatomy
Focus and Directrix
Building Triangles with Set Areas
Regular Polygons and Equivalent Triangles
Superellipse

Discover Resources

Rotating about x-axis
Exploring Cubic Functions
Tall Object Height
EadesEmmaFunctionProject2017
Functions of Two Variables

Discover Topics

Logic
Sine
Symmetry
Prism
Continuity