a = 4 (slider from 1 to 10, step 0.1)
b = 5.2 (slider from 1 to 10, step 0.1)
c = 6.4 (slider from 1 to 10, step 0.1)
A = (1, 1)
B = Point(Circle[A, c])
Hypotenuse = Segment(A, B)
c_2 = Circle(A, b)
d = Circle(B, a)
C, D = Intersect(c_2, d)
Kathete_b = Segment(C, A)
Kathete_a = Segment(C, B)
α = Angle(A, C, B)