b=3k

k

k

A_{par}= (h_1+h_2)*b
A_Δ =1/2 h_1*b
A_{par}/A_Δ=2((h_1+h_2)*b)/ (h_1*b)=
2(h_1+h_2)/ h_1 =2*h_1/h_1+2*h_2/h_1 = 3 +1/3

A = (-2.88, -0.2)
B = (4.08, -0.15454545454545246)
a = Segment(A, B)
c_2 = Circle(A, 2)
d_1 = Circle(A, 4)
e = Circle(A, 6)
D = Point(e)
k = Segment(A, D)
h = Line(B, k)
i = Line(D, a)
C = Intersect(i, h)
E = Intersect(c_2, k)
F = Intersect(d_1, k)
s_1 = Segment(B, D)
s_2 = Segment(E, C)
S = Intersect(s_2, s_1)
b = Segment(B, C)
c = Segment(C, D)
d1, s, t, v = Polygon(B, C, S)
u = Segment(D, S)
r = Segment(E, S)
f = OrthogonalLine(S, b)
G = Intersect(b, s)
H = Intersect(f, b)
I = Intersect(k, f)
h_2 = Segment(S, I)
h_1 = Segment(H, S)
test2: t / r
test1: h_1 / h_2
v1, a_1, b_1, c_1, d = Polygon(A, B, C, D)
test3: v1 / d1