SOLUTION: The circumference of one wheel is 20mm longer than of another wheel.the product of the two circumference is 144300mms.find the radii of the two wheels?

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Question 1070758: The circumference of one wheel is 20mm longer than of another wheel.the product of the two circumference is 144300mms.find the radii of the two wheels?
Answer by Alan3354(69443) About Me  (Show Source):
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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%281443%29
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Then, C = 2pi*r
r = C/(2pi)