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Number of Exterior Angles of Convex Polygons

Construct the exterior angles of the following polygon using the line Toolbar Image, point Toolbar Image, segment Toolbar Image, or angle Toolbar Imagetools. Next, identify the number of exterior angles in convex polygons of triangle, square, and pentagon by filling out the table below the GeoGebra applet. Based on your observations, determine a general formula for the number of exterior angles in convex polygons based on the number of sides.

What is the general formula for the number of exterior angles in convex polygons based on the number of sides?