Trigonométrie
Author: m@ths et tiques 2012

cos A =

AB/AC=

sin A =

BC/AC =

tan A =

BC/AB =

D = (10, -2)
A = (0, -2)
d = Line(A, D)
B = Point(d)
a = Segment(A, B)
b = OrthogonalLine(B, a)
α = 0.593411945678072 rad (slider from 0 to 90*°, step 0.0174532925199433)
B' = Rotate(B, α, A)
β = Angle(B, A, B')
c = Ray(A, B')
C = Intersect(b, c)
poly1, c_1, a_1, b_1 = Polygon(A, B, C)
γ = Angle(C, B, A)
e = Distance(c_1, b_1)
AB = Distance(A, B)
AC = Distance(A, C)
C1: AB / AC
BC = Distance(B, C)
C2: BC / AC
C3: BC / AB