using the equation (A-2)180
Where A is the number of angles in a polygon with equivalent angles.
(8-2)180
(6)180
1080 degrees total.
1080 / 8 = 135 degrees per angle.
1080 is the total degrees of all interior angles.
8 is the number of angles.
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Each of the interior angles of an equilateral triangle is 120 degrees.
Each interior angle measures 165.6 degrees
Each interior angle measures 170 degrees
It has 32 sides and each interior angle measures 168.75 degrees and so 180-168.75 = 11.25 degrees which is the measure of each exterior angle
Providing that it is a regular nonagon then each exterior angle measures 40 degrees and each interior angle measures 140 degrees