WOLFRAM
|
DEMONSTRATIONS PROJECT
Lester's Theorem
c
o
n
s
t
r
u
c
t
i
o
n
F
1
F
2
L
e
t
A
B
C
b
e
a
s
c
a
l
e
n
e
t
r
i
a
n
g
l
e
.
T
h
e
n
t
h
e
c
i
r
c
u
m
c
e
n
t
e
r
O
,
n
i
n
e
-
p
o
i
n
t
c
e
n
t
e
r
N
,
a
n
d
f
i
r
s
t
a
n
d
s
e
c
o
n
d
F
e
r
m
a
t
p
o
i
n
t
s
F
1
a
n
d
F
2
a
r
e
c
o
n
c
y
c
l
i
c
.
