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An athlete runs around a circular track. The track has a diameter of 200 feet. How many laps does she need to take to run a mile?
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An athlete runs around a circular track. The track has a diameter of 200 feet. How many laps does she need to take to run a mile?

User JDibble
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1 Answer

2 votes
First you have to figure out the length of the track:


2 * \pi * r

r is the half of the diameter:
200ft : 2 = 100ft


2* \pi *100ft = 200
\pi≈ 628,31

The athlete has to run ca. 5280ft for one mile:

5280 : 628,31≈8,4

The athlete has to run 8,4 laps
User Tobias Willig
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5.8k points
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