Answer:
9.7
Step-by-step explanation:
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.
Tan 135 = -1
so rectangular coordinates are (-7 sqrt2, 7 sqrt2)
