Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom

Outline

  1. Triangles
    1. Sum of the interior angles
    2. Exterior angle of a triangle
    3. Equilateral triangles
    4. Isosceles triangles
    5. Right-angled triangle
    6. Triangle area (different basis)
    7. Pythagoras
    8. Congruent: triangles
    9. Congruent: triangles
    10. Triangle sides: midpoints
    11. Points of intersection (Euler line)

Triangles

Author:Gerrit Stols

  • Sum of the interior angles

  • Exterior angle of a triangle

  • Equilateral triangles

  • Isosceles triangles

  • Right-angled triangle

  • Triangle area (different basis)

  • Pythagoras

  • Congruent: triangles

  • Congruent: triangles

  • Triangle sides: midpoints

  • Points of intersection (Euler line)

Next
Sum of the interior angles

New Resources

  • רישום חופשי
  • apec
  • Untitled
  • z`]]
  • အခြေခံ data အခေါ်အဝေါ်များ

Discover Resources

  • ambiguous 3
  • Altitudes
  • Wheel Rolling Left
  • FOM 12 BC

Discover Topics

  • Tangent Line or Tangent
  • Boxplot
  • Right Triangles
  • Linear Regression
  • Standard Deviation
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

© 2025 GeoGebra®