We know that all triangles add up to 180 degrees. Aimed with that knowledge, we should be able to find out the measure of regular polygons by seeing how many triangles we can make from diagonals.You can see above how it is done with the pentagon.
Check out this site to see other polygons and finish the worksheet handed out in class.
Also, there is more practice tonight with equations. Do questions a-j on Section 3.
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