document.write( "Question 1060630: find the distance in kilometers between the cities whose latitudes are given. Assume that the cities are on a north-south line and that the radius of the earth is 6400 km. City E, 13°N and city F, 73°S \n" ); document.write( "

Algebra.Com's Answer #675535 by ikleyn(52909) $\"\"$ $\"About$

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\n" ); document.write( "find the distance in kilometers between the cities whose latitudes are given. Assume that the cities are on a north-south line
\n" ); document.write( "and that the radius of the earth is 6400 km. City E, 13°N and city F, 73°S
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\n" ); document.write( "\n" ); document.write( "The distance is $\"R%2Aalpha\"$ = $\"6400%2A%28%2813%2B73%29%2F360%29%2A2pi\"$ kilometers.\r
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\n" ); document.write( "\n" ); document.write( "13° + 73° is the measure of the arc between the cities in degrees.\r
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\n" ); document.write( "\n" ); document.write( "The ratio $\"%2813%2B73%29%2F360\"$ shows which part of the entire circle is your arc.\r
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\n" ); document.write( "\n" ); document.write( "The number $\"%28%2813%2B73%29%2F360%29%2A2pi\"$ is the measure of the arc in radians.\r
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\n" ); document.write( "\n" ); document.write( " $\"R%2Aalpha\"$ is the length of the arc of a circle, where $\"alpha\"$ is the arc's measure in radians.\r
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