Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Lesson
GeoGebra
  • Home
  • Resources
  • Profile
  • Classroom
  • App Downloads

Animation 75

Author:Tim Brzezinski
Topic:Congruence, Parallelogram

What geometry theorem is dynamically being illustrated in the applet below? (Feel free to move the white points anywhere you'd like!)

Check my answer

New Resources

  • Angle Addition Postulate (V2) - Integer Solutions
  • Laundry Basket
  • 繪畫垂直線
  • Midpoint Theorem (V2): Integer Solutions
  • Writing and Graphing Proportional Relationships (k>0)

Discover Resources

  • complex mapping with sine
  • Luera Investigation - Diagonals of a Rectangle
  • Differentialquotient
  • Domain and Range
  • Mid Point Theorem Activity

Discover Topics

  • Quadrilaterals
  • Upper and Lower Sum or Riemann Sum
  • General Quadrilateral
  • Fractions
  • Difference and Slope
AboutPartnersHelp Center
Terms of ServicePrivacyLicense
Graphing CalculatorCalculator SuiteMath Resources

Download our apps here:

Download_on_the_App_Store_Badge_US-UK_RGB_blk_4SVG_092917

© 2026 GeoGebra®