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

Example of using color palette
Simple 2D Vector Field
Proving Triangles Congruent (2): Multi-Step Transformations
Cycloid from Formula
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם

Discover Resources

ODEs: Tangent Fields, Isoclines and Euler's Numerical Method
Chris Haren Triangle
Tema 2-Ejercicio 8
Volume dan Luas Permukaan Prisma
Graphing Exponential Functions

Discover Topics

Division
Vectors 2D (Two-Dimensional)
Conic Sections
Straight Lines
Root