45 degrees
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An interior angle of a regular octagon is 45 degrees. The exterior angles measure 315 degrees.
The exterior angle of an octagon measures 45 degrees. In geometry, this belongs to the group of polygons which are composed of many sides and angles.
Each exterior angle is 45 degrees and its 8 exterior angles add up to 360 degrees
The 8 exterior angles of a regular octagon add up to 360 degrees
Each exterior angle of a regular octagon: 360/8 = 45 degrees