Hạ đường vuông góc từ A

Kéo dài đường vuông góc

J = (-0.3165836602421977, 2.4230939791915382)
K = (0.673097390414459, -1.3772812553300362)
j = Segment(J, K)
k = OrthogonalLine(K, j)
L = Point(k)
M = Point(k)
N = Point(j)
l = Line(N, k)
m = Line(M, j)
đa giác3, k_1, j_1, l_1 = Polygon(J, L, K)
R = Intersect(l, m)
O = Point(j)
n = Line(O, k_1)
P = Intersect(l, n)
Q = Intersect(m, n)
đa giác4, r, q, p = Polygon(Q, P, R)
S = (-0.8114241855705246, -2.7430411052362254)
T = (12.45030189322871, 0.6812553300358162)
s = Line(S, T)
A = (2.355555176530788, 2.4824748422309377)
t = OrthogonalLine(A, s)
U = Intersect(s, t)
A' = Mirror(A, s)
c_1 = Ray(U, A)
d_1 = Ray(U, A')
o = true
u = true