WOLFRAM
|
DEMONSTRATIONS PROJECT
The Area between Two Circles
l
a
r
g
e
r
a
d
i
u
s
R
3
s
m
a
l
l
r
a
d
i
u
s
r
1
c
e
n
t
e
r
-
2
s
h
a
d
e
d
a
r
e
a
=
π
(
2
R
-
2
r
)
=
2
5
.
1
3
3
This Demonstration calculates the area between two circles.