Jin ran 400 yards around a track with a circumference of 420pi yards. How many radians did he cover?

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19-04-2018
Mathematics

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Jin ran 400 yards around a track with a circumference of 420pi yards. How many radians did he cover?

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qadassa qadassa · Answer 1 · 2018-04-19T13:06:11+02:00

qadassa qadassa

19-04-2018

420pi = 2pi*r

r = 210yards

Radius length when wrapped around circle is 1 Radian, so...

He ran 400yards

Radians covered = 400/210

He covered 1.9 radians

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