In the given Fig., if perimeter of the shape is $67 \mathrm{cm}$, the value of $x$ is

In the given Fig., $ABCD$ is a square and $PQR$ is an equilateral triangle. The difference between the perimeters of these two geometrical shapes is

In the Fig., a semicircle and a square are shown. If side of the square is equal to the radius of the semicircle, then perimeter of the semicircle is

Area of the region as shown in the given Fig. is