WOLFRAM
|
DEMONSTRATIONS PROJECT
The Chordal Theorem
c
i
r
c
l
e
r
a
d
i
i
b
l
u
e
2
o
r
a
n
g
e
1
S
u
p
p
o
s
e
t
w
o
c
i
r
c
l
e
s
w
i
t
h
c
e
n
t
e
r
s
A
a
n
d
B
i
n
t
e
r
s
e
c
t
a
t
C
a
n
d
D
.
T
h
e
n
,
A
B
i
s
p
e
r
p
e
n
d
i
c
u
l
a
r
t
o
C
D
.