Search
GeoGebra
  • Home
  • Resources
  • Profile
  • Classroom
  • App Downloads

Interior Angle Sum

Author:Linda Bollman, Andrew Knauft
As you watch the polygon change, notice how the sum of the interior angles is affected.

What makes the sum change? By how much does it change each time?

New Resources

  • Dilation + Rotation of Pentagons
  • Untitled
  • Dividing a 2-digit number by a 1-digit number (2)
  • Dividing a 3-digit number by a 1-digit number (2)
  • Marion's Theorem

Discover Resources

  • Equation of a Straight Line
  • Using Geogebra to explore reflectional symmetry
  • Triangle Tessellation step 4
  • รูปคลี่ของพีระมิด
  • MGSE9-12.G.GPE.1 Investigation 2: The Equation of a Circle APS

Discover Topics

  • Trigonometric Functions
  • Cone
  • Pyramid
  • Histogram
  • Sine
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®