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

An Apple a Day...
Spherical dodecahedron/icosahedron
Nikmati Keunggulan Di Bandar Judi Terpercaya
Untitled
Vectors and Components

Discover Resources

Solving systems of equations
UCSS Math I 2.5.2 Example 3
Kernel Vector
Lawan Vektor

Discover Topics

Trigonometry
Median Value
Geometric Transformations
Geometric Distribution
Unit Circle