The equations of the curves are
and
and
.
Determine the points of intersection by plotting their graphs.
\Graph:
\Draw the coordinate plane.
\Graph the curves
and
.

Observe the graph:
\The two curves intersect at the points
and
.
Consider
and
.
Moment about
- axis
of a planar lamina:
.
Where
uniform density of a planar lamina.
Here
value varies form
to
, so
and
.
Substitute
,
and limits of integral in the above formula.

.
Moment about
- axis
of a planar lamina:
.
Substitute corresponding values in the formula.
\
.
Center of mass
and
, where
.
Mass of the system is
.
Substitute
and
in the above formula.

.
Substitute
,
and
values in center of mass formula.

.
.
Center of mass
.
Moments
,
and center of mass
.