A = (10.34, 2.9)
B = (16.3, -4.36)
C = (5.6000000000000005, -5.2)
Vieleck1, c, a, b = Polygon(A, B, C)
S = 1.5 (slider from -5 to 5, step 0.1)
D = (2.46, -6.22)
A' = Dilate(A, S, D)
B' = Dilate(B, S, D)
C' = Dilate(C, S, D)
Vieleck1', c', a', b' = Polygon(A', B', C')