21. Broooooo, This is baby stuff!
I believe the sum of the interior angles is the number of sides (n), subtracted by 2, and multiplied by 180.
(n - 2) x 180 = sum of interior angles of a n-gon
I also believe that the sum of exterior angles of a n-gon equals to 360 degrees.
Answer:
Step-by-step explanation:
x = -6 ± 3√2
x = -6 + 3√2
x = -6 - 3√2
Answer:
20
Step-by-step explanation:
Answer:
the answer is -3. Your welcome
