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Polygon Sum Conjecture:

The Angle Sum applet- illuminations.nctm.org/ActivityDetail.aspx?ID=9 for the "Adding It All Up" activity.

Triangulation:
 To triangulate any polygon, connect all diagonals from one vertex.


 

 


 


 


 


 


 


 


 

Compete the "Adding It All Up" activity with your group.

Sum of Exterior Angles of a Polygon Conjecture:
Forming the exterior angles - www.absorblearning.com/media/attachment.action?quick=dr&att=982

Link to intearctive polygons - https://www.mathsisfun.com/geometry/polygons-interactive.html


 


 

Star Polygons

mathworld.wolfram.com/StarPolygon.html

starpolygons.com/