Any angle you like, between 0 and 360 degrees (excluding the extreme values). The only constraint is that the sum of all the interior angles must be (19-2)180 = 17180 = 3060 degrees. To find the measurement of each interior angle you would divide 3060 by 19 (3060/19) which would get you 161.1. So the measure of each interior angle is 161.1.
Each interior angle measures 135 degrees
Each exterior angle: 40 degrees Each interior angle: 140 degrees
Each interior angle measures 1710 25' 42.86''
Each interior angle measures 162.'857142' degrees recurring '857142'
Each of the 4 interior angles measure 90 degrees
Each interior angle measures 135 degrees
Each interior angle measures 140 degrees
Each interior angle measures 140 degrees
Each interior angle will measure 156 degrees
Each interior angle will measure 162 degrees
Each interior angle is 140 degrees. Each exterior angle is 220 degrees.
Each exterior angle: 40 degrees Each interior angle: 140 degrees
Each interior angle measures 108 degrees
Providing that it is a regular octagon each interior angle measures 135 degrees
It will have 14 sides and each interior angle will measure 2160/14 degrees
It will have 10 sides and each interior angle measures 144 degrees while each exterior angle measures 36 degrees
Each interior angle is 157.5