Find the circumference and the area of a circular ground with radius $77\, m$.
Find the circumference and the area of a circular ground with radius $77\, m$.
Here, the radius of the circular ground
$r=77 m$
Circumference of a circle $=2 \pi r$
$=2 \times \frac{22}{7} \times 77$
$=484 m$
Area of a circle $=\pi r^{2}$
$=\frac{22}{7} \times 77 \times 77$
$=18.634 m ^{2}$
Thus, for the circular ground, the circumference is $484 m$ and the area is $18,634 m ^{2}$
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