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Posted by **monic** on Monday, November 26, 2012 at 11:17pm.

mi/h

- trigonometry -
**Reiny**, Monday, November 26, 2012 at 11:23pmcircumference of wheel

= distance covered in 1 rotation

= 2π(11) = 22π inches

distance covered in 800 rotations

= 800(22π) = 17600π inches

= 17600π/12 ft

= 17600π/(12(5280)) miles

= .87266.. miles per minute

= 52.36 miles/hr

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