The sum of the interior angles of a polygon with N sides is (N-2) x 180 degrees.
For a 30-gon, the sum of interior angles is (28) x (180) = <u>5,040 degrees</u>.
It makes no difference whether or not the polygon is convex at every vertex.
I think choice a would be the correct answer. 90.
Answer:
30
Step-by-step explanation:
270/9 = 30
Hope This Helps & Good Luck :)