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06-04-2018
Mathematics

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a wheel has a radius of 12cm how far does it travel in 2 revolutions? a:47.1 b.150.72 C:188.4 D:376.8

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MrRamon MrRamon

20-04-2018

b.150.72
The formula for circumference in terms of the radius is [tex]C=2 \pi r [/tex] plug in the values and multiply by the number of revolutions (2)
C= 2(2π12)
C=2(24π)
C=48π
C= 150.72

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