triangolo isoscele

E = (-8, 8)
F = (8, 8)
c = Segment(E, F)
E_1 = (6, -10)
F_1 = (22, -10)
c_1 = Segment(E_1, F_1)
d = Circle(E_1, c)
e = Circle(F_1, c)
A = Intersect(d, e, 1)
a = Segment(A, E_1)
b = Segment(A, F_1)