The figure is formed by $2$ quarter circles and the area of the shaded square is $49 c{m}^2$. Find the perimeter of the figure. (Take $\mathrm{\pi }= \frac{22}{7}$)

Match the shaded area

Match the following.

Find the perimeter of a rectangle whose length is $9 cm$ and breadth is $6 cm$.

Find the length of the rectangle whose area is $120 c{m}^2$And breadth is $6 cm$. 

Find the area of a circle whose radius is $2.1 \mathrm{cm}$.

The area of a parallelogram is $144 c{m}^2$ and its height is $18 cm$. Find the length of the corresponding base.

The area of a rectangular ground is $120 m^2$ and its length is $12 m$. Find its breadth.

If the radius of a circle is $7 cm$, then find the circumference of the circle.