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Mathematics 15 Online
OpenStudy (anonymous):

Please Help!!!! Images will be posted! I need help understanding.

OpenStudy (anonymous):

Directrix (directrix):

There's a theorem you have to know for these two problems. --> The sum of the exterior angles of a polygon is 360.

Directrix (directrix):

Look at the diagram. The angle with measure x is an exterior angle. Agree?

Directrix (directrix):

The polygon has 8 sides. 360/8 = 45 degrees for x.

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