Learn more

So far we have explored the sum of the interior angles of a polygon. What about the exterior angles of a convex polygon1?

Visit the Polygons: Sum of Exterior Angles website2 and explore the tools for triangles, quadrilaterals and pentagons.

  • What do you notice?

  • What is common about the sum of the exterior angles of all three of these polygons?

  • Do you think that your observation will be the same for other convex polygons?

Screenshot of the Polygons: Sum of Exterior Angels website

Learn more with the exterior angle of a convex polygon activity.

The Geometer’s Warehouse3 is full of resources to help you understand more geometric facts.

Links

  1. http://www.mathsteacher.com.au/year7/ch09_polygons/05_polygon/pol.htm#convex
  2. https://www.geogebra.org/m/YYsk9UDs
  3. http://www.resources.det.nsw.edu.au/resource/access/cb02edfa-eb1d-43e7-b913-08e55cdb3435/0