A, B và C thẳng hàng. Góc ACD là góc tù.

? Ai đi xa nhất, ai đi gần nhất.

A = (-4.1220000000000026, 1.6239999999999986)
C = (1.1139999999999972, 1.5579999999999985)
D = (2.785999999999997, 5.341999999999999)
đa giác1, c, a, b = Polygon(A, C, D)
B = Point(c)
d = Segment(B, D)
α = Angle(D, C, A)
e = Line(A, C)
f = OrthogonalLine(C, e)