document.write( "Question 1189705: A and B are two places on longitude 10W. If their latitudes differ by 63, find the distance of A from B. \n" ); document.write( "

Algebra.Com's Answer #821155 by ikleyn(52781) $\"\"$ $\"About$

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\n" ); document.write( "A and B are two places on longitude 10W. If their latitudes differ by 63 $\"highlight%28degrees%29\"$ ,
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document.write( "The points A and B lie in one great circle of the Earth, with the central angle between them of 63 degrees.\r\n" );
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document.write( "THEREFORE, the distance from A to B is   =  = 7037 kilometers (approximately).\r\n" );
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document.write( "In the formula, R = 6400 is the approximate radius of the Earth (in kilometers).\r\n" );
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document.write( "(see this Wikipedia article https://en.wikipedia.org/wiki/Earth_radius  )\r\n" );
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