What is the measure of each interior angle of a 19-gon?

Answer 1

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 = 17*180 = 3060 degrees.

Answer 2

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.