A circular plate of diameter d is kept in contact with a square plate of edge d as shown in figure. The density of the material and thickness are same everywhere. The CM of composite system will be

Given that a circular plate and square plate are having same thickness & same density at every point.

Diameter of circular plate = side of square plate.

Area of circular plate < Area of square plate

$\frac{{\text{πd}}^{\text{2}}}{\text{4}}<{\text{d}}^{\text{2}}$

$\Rightarrow$  mass of circular plate < mass of square plate.

${\text{m}}_{\text{s} }>{\text{m}}_{\text{c}}$

Therefore C.M present inside the square plate