WOLFRAM
|
DEMONSTRATIONS PROJECT
P
r
o
b
l
e
m
s
o
n
C
i
r
c
l
e
s
I
V
:
C
i
r
c
l
e
s
T
a
n
g
e
n
t
t
o
T
w
o
O
t
h
e
r
s
w
i
t
h
a
G
i
v
e
n
R
a
d
i
u
s
r
a
d
i
u
s
G
i
v
e
n
t
w
o
(
o
r
a
n
g
e
)
c
i
r
c
l
e
s
,
f
i
n
d
t
h
e
c
i
r
c
l
e
s
t
a
n
g
e
n
t
t
o
t
h
e
m
w
i
t
h
a
g
i
v
e
n
r
a
d
i
u
s
.
