$\"\"$

Draw the diagram :

$\"\"$

Observe the diagram:

The centroids of the regions are $\"\"$ and $\"\"$ .

Mass of the square region is area of the square, $\"\"$ .

Mass of the circle is areaof the circle is $\"\"$ .

The center of mass is $\"\"$ .

$\"\"$

$\"\"$ .

The center of the mass is $\"\"$ .

$\"\"$

The center of mass is $\"\"$ .