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

Basic Percent Exercises (V1)
רישום חופשי
Similar Solids
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
Golden Rectangles and Golden Spirals

Discover Resources

Solution to circle area problem
tangent value explanation
การแยกตัวประกอบของพหุนามดีกรีสอง
Fraction Models

Discover Topics

Indefinite Integral
Geometric Transformations
Integers
Tree Diagrams
Trapezoid