Question

The perimeter of a circular field is $242$ m. Find the area of the field.

Answer 1

Perimeter of field(circular) $=242m$

$2\pi R=242m\Rightarrow R=\frac{242\times 7}{2\times 22}=\frac{77}{2}m$

Area of circular field $=\pi R^2=\frac{22}{7}\times \frac{77}{2}\times \frac{77}{2}=4658.5m^2$