A horse is placed for grazing inside a rectangular field $70 \mathrm{m}$ by $52 \mathrm{m}$ and is tethered to one corner by a rope $21 \mathrm{m}$ long. How much area can it graze?

Divide the given shapes into $3$ rectangles.

Divide the given shapes into trapezium.

Divide the given shapes into $3$ triangles.

Find the area enclosed by the following figure.

Find the area enclosed by the following figure.