Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom

Outline

  1. The Area of a Triangle
    1. Area and Perimeter of Rectangles
    2. Area of Right Triangles compared to Rectangles
    3. Test Your Formula
    4. Area of a Triangle

The Area of a Triangle

Author:Chelsea Gibbons
Topic:Area, Geometry
Discover the area of a triangle based on prior knowledge of the area of a rectangle.

  • Area and Perimeter of Rectangles

  • Area of Right Triangles compared to Rectangles

  • Test Your Formula

  • Area of a Triangle

Next
Area and Perimeter of Rectangles

New Resources

  • Linear Equation Graphs: Thin Slice
  • What Do You See? (2)
  • Untitled
  • Function art 3D - waiting shed (v2)
  • Function Art 3D - Flower

Discover Resources

  • Drag a Point
  • Opg. 45
  • Geogebra Quiz
  • Square construction
  • euler line

Discover Topics

  • Bar Chart or Bar Graph
  • Scalene Triangles
  • Binomial Distribution
  • Rhombus
  • Circumcircle or Circumscribed Circle
AboutPartnersHelp Centre
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®