x

y

u

v

x-u

y-v

K = (8, 7)
P = (14, 10)
c = Circle(K, P)
r = Segment(K, P)
B_{x}: (x(P), 0)
B_{y}: (0, y(P))
K_{x}: (x(K), 0)
K_{y}: (0, y(K))
g = Segment(P, B_{x})
h = Segment(K, K_{x})
i = Segment(K_{y}, K)
j = Segment(B_{y}, P)
k = Segment(B_{y}, K_{y})
l = Segment(K_{x}, B_{x})
m = Line(K_{x}, K)
n = Line(K_{y}, K)
p = Line(P, B_{x})
q = Line(P, B_{y})
C = Intersect(n, p)
D = Intersect(q, j)
E = Intersect(m, q)
r_{1} = Segment(K, C)
s = Segment(K, E)
t = Segment(C, P)
α = Angle(P, C, K)