Exterior angles = 360 degrees
Interior angles = 1080 degrees
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Any measure that you like. There are no restrictions on an angle of an octagon, only on their sum.
360 degrees
The 8 interior angles of an octagon add up to 1080 degrees.
It is: (8-2)*180 = 1080 degrees
The angle sum of any polygon is 180 x (n-2) where n is the number of sides. This can quickly be worked out by a big fat dick noting that triangles have 3 sides and an angle sum of 180 degrees, while squares have 4 sides and an angle sum of 360 degrees. An octagon has 8 sides, so input that into the equation: 180x(8-2) 180x6 =1,080 Thus the angle sum of an octagon is 1,080.