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This site has students determine the sum of interior and exterior angles as well as the number of diagonals. Scroll down to section three. |
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This site defines the terms associated with polygons and explains how to determine the sum of interior and exterior angles. |
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This site provides an activity for the students to determine the sum of the interior and exterior angles of a polygon. |
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This site explains how to determine the number of diagonals in a convex polygon. |
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Pages 244-247 |
Angles and Polygons |
Pages 232-235 |