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

seo tool
Model sferyczny - sześcian-ośmiościan
Viviani's Curve
רישום חופשי
¿Quién llegará más lejos en el mundial?

Discover Resources

Prisma
TMA2
Perpendicular Bisectors and the Circumcenter
תרגיל 1 - קצב השתנות של פונקציה קווית (183)

Discover Topics

Frequency Distribution
Isosceles Triangles
Rhombus
Quadratic Equations
Fractions