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: 879.2

Step-by-step explanation:I took the test

Answer 2

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

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*(22)/(7)*70=440\text{ meters}`
`[\text{Use }\pi=(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