Question

A cyclist rides cycle on a circular track of radius $\frac{700}{22}$ m. What distance does he cover when he makes a full round of the track?

• A. $100m$
• B. $200m$
• C. $\frac{22}{7}$ m
• D. None of these

Answer 1

Answer: (B)

$200m$

Use value of $\pi$ as $\frac{22}{7}$
Distance covered = length of the path travelled.
After he makes a full round of the track, length of the path covered equals the perimeter of the circle.
Radius of the circle = $\frac{700}{22}$ m
$\therefore$ perimeter of the circle = $2\times \pi \times \frac{700}{22}$ = $2\times \frac{22}{7}\times \frac{700}{22}$ = $200m$
Distance covered after a full circle$=200m$