Find the perimeter of a rectangle whose area is $500 {\mathrm{cm}}^2$ and breadth is $20 \mathrm{cm}$.

Find the value of K

The following figures have been split into rectangles. The area is ${\mathrm{K} \mathrm{cm}}^2$

Find the value of K.

The figure has been split into rectangles. Its area is ${\mathrm{K} \mathrm{cm}}^2$ . 

Split the shape into rectangles and find the value of K if the area is ${\mathrm{K} \mathrm{cm}}^2$.