Question

A cow is tied up for grazing inside a rectangular field of dimensions 40 m $\times$ 36 m in one corner of the field by a rope of length 14 m. Find the area of the field left ungrazed by the cow.

Answer 1

Area of field left ungrazed = Area of field - Area grazed

= $4\times 36-\frac{{90}^0}{{360}^0}\times \frac{22}{7}\times 14\times 14$

$4=1440-154$ = 1286$m^2$