Question 842340
extend the lines of the sides of your polygon out, you should find that each side is a straight line. a straight line = 180 degrees. if you are finding the angle measure of the interior angle, then its 180- 18
answer is 162 degrees.
 x degrees ........./18 degrees
-----x degrees/18 degrees----
<<<<<straight line 180>>>>
180-18=162

answer 162 degrees: