GoGeometry Action 53!

Topic:Angles, Incircle or Inscribed Circle, Right Triangles

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

Quick (Silent) Demo

New Resources

Isosceles Right Triangle
GeoGebra 3D Modeling Workshop (March 8 2024)
Rovnoběžnost rovin
Slope Illustrator (2)
Function Art 3D - Flower

Discover Resources

Light in GeoGebra (3)
Viviani's Theorem
limits - chap 4 differentiation
EM 2016 P1 Q17
U1S1: Activity #2: Pythagorean Theorem Intro

Discover Topics

Coordinates
Combinatorics
Cube
Expected Value
Scatter Plot