Question

The circumference of a circular field is $308m$ . Find its area.

• A. $7546m^2$
• B. $6546m^2$
• C. $7046m^2$
• D. $7846m^2$

Answer 1

The correct option is A $7546m^2$

Let the radius of the circle be $r$ cm
Circumference of the circle=$308$
Therefore,
$2\pi r=308$
$=>r=\frac{308\times 7}{2\times 22}$
$=>r=49m$
Therefore,
Area of the circle=$\pi \times (49{)}^2$
=$\frac{22}{7}\times 2401$
=$7546m^2$