Answer:
-14, -13, -7, 11
Step-by-step explanation:
x + 10 = -4 ----> x = -14
x + 10 = -3 ----> x = -13
x + 10 = 3 ----> x = -7
1 + 10 = x ----> x = 11
No a polygon only has 3 sides and 3 angles.
