A1 = -2
B1 = 11
A2 = 5
B2 = 28
A3 = 46
B3 = 31
A4 = 56
B4 = 46
A5 = 58
B5 = 22
A6 = 51
B6 = 5
A7 = 10
B7 = 2
A8 = 2
B8 = 5
A9 = -2
B9 = 11
A: (A1, B1)
B: (A2, B2)
C: (A3, B3)
D: (A4, B4)
E: (A5, B5)
F: (A6, B6)
G: (A7, B7)
H: (A8, B8)
I: (A9, B9)
a = PolyLine({A, B, C, D, E, F, G, H, I})
poly1, a_1, b, c, d, e, f, g, h = Polygon(A, B, C, D, E, F, G, H)