Question

If the circumference of a circular field is 440 m, then its area is ___ $m^2$

• A. 10000
• B. 15,000
• C. 14,500
• D. 15,040

Answer 1

The correct option is A 10000

Let 'r' be the radius of the circular field

Circumference $=2\pi r$

$40=2\times \frac{22}{7}\times r$

$r=70m$

Area $=\pi r^2$

$=\frac{22}{\text{/}7}\times \text{/}{70}^{10}\times 70$

$=15,400m^2$

Hence (A)