GeoGebra
GeoGebra
  • Home
  • News Feed
  • Resources
  • Profile
  • People
  • Classroom
  • App Downloads
About GeoGebra
Contact us: office@geogebra.org
Terms of Service – Privacy – License

© 2023 GeoGebra

Invariance of the sum of areas

Author:
Idan Tal
Topic:
Area

The applet illustrates the property: If K, I, N, G are the midpoints of a quadrilateral's sides AD, AB, BC, and CD, respectively, then, SAIFK + SFNCG = SIBNF + SKFGD.

New Resources

  • Unit Vector
  • Paradoxes on π
  • Umbrella Holder
  • Which Segment is Longer? (V2)
  • Open Middle Inscribed Angle Exercise (1)

Discover Resources

  • disequazioni irrazionali
  • Fermat Point
  • kite
  • Ejercicio 3
  • טרפז

Discover Topics

  • Binomial Distribution
  • Cone
  • Sequences and Series
  • Stochastic Process or Random Process
  • Trapezoid

GeoGebra

  • About
  • Partners
  • GeoGebra on Tests
  • News Feed
  • App Downloads

Apps

  • Calculator Suite
  • Graphing Calculator
  • 3D Calculator
  • CAS Calculator
  • Scientific Calculator

Resources

  • Classroom Resources
  • Learn GeoGebra
  • Classroom
  • Geometry
  • Notes
  • Terms of Service Privacy License
  • Facebook Twitter YouTube