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OpenStudy (anonymous):
Determine the sum of the measures of the interior angles of the specified polygon. An octagon A. 720° B. 1080° C. 900° D. 1440°
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OpenStudy (anonymous):
can you post a picture of the shapes?
OpenStudy (anonymous):
there isn't a pic
OpenStudy (mertsj):
You can divide an octagon into (8-2) triangles. Each triangle has angle sum of 180 degrees. So 6 triangles have angles that total 6(180) or 1080 degrees.
OpenStudy (mertsj):
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