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

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רישום חופשי
Tracing an Ellipse Using Two Circles
Rolling a Square
Slope Between 2 Points (Phase 2)

Discover Resources

Opposite angles
Механизм Липкина — Посселье
angolo_2
Loc Geometric: Mediana.
Circles with Centre (a,b)
square vertex homework
Buatlah garis yang sejajar dan melalui titik (3,0)

Discover Topics

Sphere
Stochastic Process or Random Process
Vectors
Line Segment
Poisson Distribution