The Angle Defect of a Polyhedron (Geometry and the Imagination)
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|Conway, Doyle, Gilman, Thurston; The Geometry Center|
|The angle defect at a vertex of a polygon is defined to be 2 pi minus the sum of the angles at the corners of the faces at that vertex. What is the angle sum for a polygon (in the plane) with n sides? Determine the total angle defect for each of the 5 regular polyhedra.|
|Levels:||Middle School (6-8), High School (9-12)|
|Resource Types:||Lesson Plans and Activities|
|Math Topics:||Polyhedra, Triangles and Other Polygons|
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