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GoGeometry Action 20!

Author:Tim Brzezinski
Topic:Incircle or Inscribed Circle
Creation of this applet was inspired by a tweet from Antonio Gutierrez. What is the sum of the measures of the red angle and blue angle? How can you formally prove this true?

Quick (Silent) Demo

New Resources

  • Slope Between 2 Points (Phase 2)
  • Slope and Road Signs
  • Hyperbolic Paraboloid
  • အခြေခံ data အခေါ်အဝေါ်များ
  • apec

Discover Resources

  • SAS 6 unit, 57º, 7 units Solution
  • ЕБС-ийн шинэчилсэн хөтөлбөрөөр геометрийн хичээлийг заах асуудалд
  • Move around B. Describe what is happening
  • Colour Your World with Coordinates
  • Transformations of Quadratic Functions

Discover Topics

  • Polynomial Functions
  • Inequalities
  • Arithmetic Operations
  • Parallelogram
  • Cuboid
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