GoGeometry Action 74!

Topic:Circle, Isosceles Triangles, Tangent Line or Tangent

Creation of this applet was inspired by a post from Antonio Gutierrez (GoGeometry). How can we formally prove what this applet informally illustrates?

Quick (Silent) Demo

New Resources

Spherical dodecahedron/icosahedron
Here comes the sun!
Sunny Variations
z`]]
'Einstein' tile vitral

Discover Resources

reflection 7
Triangle Project
สามเหลี่ยมมุมฉาก
Скользящая симметрия
Kristofer Potman IT19

Discover Topics

Surface
Secant Line or Secant
Integral Calculus
Square
Fractions