Question

The circumference of a circular field is $308m$. Find its radius in metres.

• A. $49$m
• B. $59$m
• C. $91$m
• D. $94$m

Answer 1

The correct option is A $49$m

The circumference of a circular field is $308m$
Therefore, $2\pi r=308$

$\Rightarrow r=\frac{308\times 7}{2\times 22}$

$\Rightarrow r=49m$