Question

an athlete completes five round along a circular track of diameter 210m.Calculate the total distance covered by him. ​

Answer 1

Circumference of circle = 2πr

Diameter = 210m

Therefore,

$2 \times \pi \times \frac{210}{2}$

=

$\frac{22}{7} \times 210$

= 660 × 5 = 3300m