The function are
and
,
and
.
Graph :
\Graph the functions
,
,
and
. :

Observe the graph,
\The area of the region bounded by the curves is
.
\
The centroid of the region is
.
Find area of the region.
\
.
The centroid is
.

Substitute
,
and
in above equation.

Integral formula :
.
.
.
Substitute
,
and
in above equation.
Integral formula :
.

The centroid of the region is
.
The centroid of the region is
.