aufklappen

a = 1 (slider from 0 to 1, step 0.0050)
A = (0, -4)
B = (8, -4)
C = (10, -2)
Vieleck1, c, a_1, b = Polygon(A, B, C)
D = (0, 3)
d = Segment(D, A)
e = Segment(D, B)
f = Segment(D, C)
E = Point(d)
B' = Rotate(B, 90.0*°, A)
β = Angle(C, B, A)
γ = Angle(B, D, C)
δ = Angle(D, C, A)
α = Angle(B, A, D)
g = Circle(A, C)
h = Line(A, B)
D_2 = Point(yAxis)
D': (0.0 * (1.0 - a) + 0.0 * a, 3.0 * (1.0 - a) - 11.0 * a)
Vieleck2, f_1, a_2, b_1 = Polygon(A, B, D')
k = Circle(B, D)
p = Circle(C, D)
G, H = Intersect(k, p)
D'': (0.0 * (1.0 - a) + 15.0 * a, 3.0 * (1.0 - a) - 12.0 * a)
Vieleck3, i, b_2, c_1 = Polygon(B, C, D'')
γ_1 = Angle(C, D'', B)
Vieleck4, d_1, a_3, c_2 = Polygon(A, C, D)
j = Segment(A, D_2)