Question 1070758
The circumference of one wheel is 20mm longer than of another wheel.the product of the two circumference is 144300mm.find the radii of the two wheels?
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 Find a pair of factors of 144300 that differ by 20.
 (Finding the factors of 1443 that differ by 2 is easier.)
 Hint: The factors of 1443 don't differ by much (2) --> they're close to the 
{{{sqrt(1443)}}}

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 Then, C = 2pi*r
 r = C/(2pi)