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To find the latitude that you want, take half the circumference at the equator (2 X pi X r/2). We now have to find the cosine of the latitude angle that equals 0.5 (r/2 = 0.5 X r). Either by trial and error or by using arccos, we find that the latitude where the circumference is half that at the equator is 60 degrees.
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www.newton.dep.anl.gov/askasci/env99/env163.htm
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rexann r mallory Answer: First, let's calculate the distance around the earth at the equator. The distance around a circle is also called the circumference.
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www.newton.dep.anl.gov/askasci/gen99/gen99027.htm
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it is the relationship between the length of the circumference and his diameter. We consider the circumference constituted by the equator. This circumference has a certain ray. We don't know of as precise as it you measure.
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mlasca.interfree.it/equator.htm
mlasca.interfree.it/equator.htm
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The circumference of the earth at the equator is 24,901.55 miles (40,075.16 kilometers). ... But, if you measure the earth through the poles the circumference is a bit shorter - 24,859.82 miles (40,008 km). This the earth is a tad wider than it is tall, giving it a slight bulge at the equator. This shape is known as...
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geography.about.com/library/faq/blqzcircumference.htm
geography.about.com/library/faq/blqzcircumference.htm
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Many will think that since 25,000 miles is so large, you will need to add lots of rope to lift it off of the equator. But extra circumference only scales as 2*Pi times the extra radius, which is 1 foot... a somewhat surprising consequence of simple geometry.
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www.math.hmc.edu/funfacts/ffiles/10011.2.shtml
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Maximum circumference of the Earth = circumference of the Earth at the equator = circumference of parallel of latitude at 0° latitude = 2πa =; Radius of sphere of equal circumference = a...
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home.online.no/~sigurdhu/WGS84_Eng.html
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Social Sciences question: How many miles around is Earth at the equator? The circumference of the earth at the equator is 24,901.55 miles (40,075.16 kilometers). But, if you measure the earth through ... The circumference of the earth at the equator is 24,901.55 miles (40,075.16 kilometers). But, if you measure the...
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wiki.answers.com/Q/How_many_miles_around_is_Earth_at_th...
wiki.answers.com/Q/How_many_miles_around_is_Earth_at_the_equator
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iqnabeel Member since: February 23, 2006; Total points: 30 (Level 1) ... Show me another » ... 6 months ago...
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answers.yahoo.com/question/index?qid=20081020051541AA7s...
answers.yahoo.com/question/index?qid=20081020051541AA7spQR
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Articles previously on this page: ... Conversion of Traditional or Specialized Units ... Radius of the Earth and circumference at the Equator.
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home.att.net/~numericana/answer/units.htm
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