Geometry: Exterior Angles of a Polygon -GSP

Geometry:  Exterior Angles of a Polygon -GSP
Geometry:  Exterior Angles of a Polygon -GSP
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PRODUCT DESCRIPTION

This Geometer's Sketchpad file contain shows a picture of a changeable polygon. By moving points A, B, C, E, or F you can change the shape of the polygon. Hide/Show buttons can be clicked on to reveal the measure of each exterior angle and the total of the exterior angles. By moving the points A, B, C, E, or F you can see the figure changes, the individual exterior angles change, but the total measure is always the same.

To give a reason why this is true, you can collapse the polygon by moving the point D toward the center until the figure collapse to 5 exterior angles only. You should see a complete 360 degrees.

A second page allows you to repeat the same concept using a different polygon. Pull on point B to change the size of the polygon.
Total Pages
1
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N/A
Teaching Duration
30 Minutes

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Geometry:  Exterior Angles of a Polygon -GSP
Geometry:  Exterior Angles of a Polygon -GSP
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