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

Sum of Interior Angles of a Polygon

Author:
現代中學數學 Modern Secondary Mathematics
Topic:
Angles, Plane Figures or Shapes, Polygons
Investigate the sum of interior angles of a polygon by observing the number of triangles the polygon can be divided into. (for use with P.4.10 and P.4.11 of Book 1B)

New Resources

  • Gur Emir mausoleum - mu
  • exterior small panels
  • interior - wal panels - gp
  • Gur Emir complex - mu
  • Bibi Khanum moskee - square pattern- ks

Discover Resources

  • Kuen surface
  • Transformations
  • Equilateral Theorem
  • 圖形A
  • Rolling Conic Sections

Discover Topics

  • Arithmetic Mean
  • Indefinite Integral
  • Perimeter
  • Quadratic Equations
  • Trigonometric Functions

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