Question

paris run 3 1/2 laps around the circular track in the school gym. The track has a diameter of 1/2 mile. About how far does paris run?

Answer 1

5.497787144 miles

Explanation:

Remember that circumference of a circle can be calculated with:

`2\pi r`

r=radius

We also know that the radius is just a half of the diameter.

So, the radius of the track is (1/2)/2=1/4 miles

Now, use the circumference of a circle formula to find how much she runs in 1 lap.

`2\pi ((1)/(4) )`

Simplify

`(\pi )/(2)`

This is how much she runs in 1 lap.

Multiply by 3.5 for 3 and a half laps.

`(\pi )/(2)*3.5`

The answer is around 5.497787144 miles.