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

Experiments with Transformations in the Plane
Roll Dice
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גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
רישום חופשי

Discover Resources

Areas of parallelograms and triangles 2
Kiara Byrd: Test question 2
Composition of Harmonic Oscillations
Bejana Polinomial
Changing the Vertex: IM Alg1.6.17

Discover Topics

Definite Integral
Combinatorics
Step Functions
Scatter Plot
Conditional Probability