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OpenStudy (anonymous):
What is the measure of an interior angle of a regular decagon?
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OpenStudy (ddcamp):
Interior angle of a regular ngon: \[\frac{ 180(n-2) }{ n }\] A decagon has 10 sides.
OpenStudy (anonymous):
n=represents the number of sides of the regular polygon
OpenStudy (anonymous):
If two lines intersect in the same plane to form a right angle, what can be concluded?
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