$x$

$x$

AB = 18 cm
AC = 10 cm

A = (3, 3)
B = (6.42, 2.1)
a = Segment(B, A)
b = OrthogonalLine(A, a)
C = Point(b)
c = Segment(A, C)
d = Segment(C, B)
E = Point(a)
distanceBE = Distance(B, E)
TexteBE: Name[B] + (Name[E]) + " \, = \, " + distanceBE
e = Circle(A, distanceBE)
D = Intersect(e, c, 1.0)
f = Segment(D, E)
α = Angle(B, A, C)