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OpenStudy (anonymous):
The sum of the measures of the angles in a nonagon is:
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OpenStudy (anonymous):
To find the measure of the angles, we know that the sum of all the angles is 1260 degrees (from above)... And there are nine angles... So, the measure of the angle of a regular nonagon is 140 degrees. reference: www.coolmath.com/reference/polygons-09-nonagons.html
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