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Mathematics 9 Online
OpenStudy (anonymous):

If the latitude of Chicago is about 42 degres, and the radius of earth is about 4000 miles, how far is Chicage from the equator? (use pi=3.1416)

OpenStudy (a_clan):

\[\Theta/arc length =360/2\Pi r\]

OpenStudy (dumbcow):

2932.15 miles

OpenStudy (dumbcow):

2*pi*r *(42/360) = 2932.15

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