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Webcomic #104 - "Accelerated Math" (NASCAR) 9-20-13
What is the sum of the interior angles of a regular hexagon? How many diagonals are in an octagon? What is the difference between a concave and convex figure? Here is an introduction to Polygons, including formulas, notes, and illustrations. Also, there is a quiz (with solutions).
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Definitions and discussion of polygons and geometry topics from mathopenref.com
Polygon videos and quick homework help from moomoomath.com
Free Geometry Worksheets from Kutasoftware.com
"Concavities" by Chris Burke - X Why (7-18-12) click lower right to view
<--- Practice Quiz
Can you find the angle measures in this polygon collage?