144 degrees
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Each interior angle of a regular decagon is 144 degrees
well the total degrees in a decagon is 1440 therefore each interior angle in a regular decagon would measure 144 degrese
Sum of the interior angles of a decagon = 180*(10-2) = 180*8 = 1440 degrees. Since each interior angle of a regular polygon has the same measure, each angle of the decagon = 1440/10 = 144 degrees.
Each interior angle of a regular 10 sided decagon measures 144 degrees
144 degrees is.