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

Linear Equation Graphs: Thin Slice
Function art 3D - waiting shed (v2)
Pythagorean Theorem: Quick Illustrator
Squares Question
Perpendicular Lines: Quick Exploration

Discover Resources

Angle Relationships in Quadrilaterals
GER - Συνάρτηση: y=συν(αx) (Παιχνίδι)
Chapter 8 Test
dec to frac
Subtraction of Vectors

Discover Topics

Pythagoras or Pythagorean Theorem
Hypergeometric Distribution
Random Variables
Continuity
Surface