Today Mr. Max taught us about polygons. The first picture is of the diffrence between a concave and a convex polygon. The one with the "dinted in area" in red is concave.
This picture demonstrates the rule that there is always one less triangle that can be made then the number of sides, when the goal is the minimum number of triangles that can be fit in a regular polygon.
This picture shows us regular, equiangular, equilateral polygons.
These next two pictures demonstrate the formulas for finding the sum of the measures of the interior angles in a polygon.
n=number of sides
Mr. Max asked me to comment on wikipedia. From my experiance it is a good conveniant source of information.
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