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

Plotting Points in Quadrant 1
Perpendicular Lines: Quick Exploration
Pythagorean Theorem: Extension Exercises
Odd Function Explorer
Right Triangle Inscribed in a Semicircle

Discover Resources

One Dimension
Primena trigonometrije
Maths revision
Kali F
การบวกจำนวนเต็มบวกกับจำนวนเต็มลบ

Discover Topics

Distributions
Geometric Distribution
Arithmetic Operations
Cuboid
Dilation