Warm up: Review the following:The exterior angles sum conjecture: For any polygon, the sum of the measures of a set of exterior angles is 360 degrees.
This can easily be visualized by walking around a building that has any polygon shape. The angles that you will turn must sum up to 360, because you end up pointing in the direction you started.
The sum cannot be other than 360. Even if you have an 80 sided building. Every turn would just have a small angle measure. In fact, if you had a regular 80-gon, ("regular" meaning every side and angle is the same) then each angle would measure 360/80 which would be a very small 3.5 degrees each turn.
1. In class today, please do the Star Polygon exploration on page 264. Work together, stay focused. I will rotate around the room to help.
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