Question

Fiona races BMX around a circular dirt course. If the radius of the course is 70 meters, what is the total distance Fiona covers in two laps of the race?

Answer 1

Answer:  The total distance Fiona covers in two laps of the race = 880 meters

Step-by-step explanation:

Given : Fiona races BMX around a circular dirt course.

The radius of the course is 70 meters.

Then , Circumference  of circular dirt course = $2\pi (radius)$

= $2\times\dfrac{22}{7}\times70=440\text{ meters}$      $[\text{Use }\pi=\dfrac{22}{7}]$

Now , the total distance Fiona covers in two laps of the race = 2 x (Circumference  of circular dirt course)

= 2 x (440 meters)

= 880 meters

Hence, the total distance Fiona covers in two laps of the race = 880 meters