Longitude Degrees at the Equator
Date: 09/09/97 at 12:03:08 From: Motts Parrinello Subject: Distance in miles between longitude degrees at the equator Dear Dr. Math, What is the distance in miles between degrees of longitude at the equator ? Is it the circumference of the earth divided by 360 degrees? If so, how do I find the circumference or diameter so I can multiply by 3.14 ? Thank you, Motts Parrinello
Date: 09/09/97 at 12:57:36 From: Doctor Rob Subject: Re: Distance in miles between longitude degrees at the equator Yes, it is the circumference of the Earth divided by 360. The answer is exactly 60 nautical miles, by definition. Since one nautical mile is 1.150777 statute miles, your answer is 69.04663 miles. Multiply by 360 to get the circumference of the earth, then divide by Pi to get the diameter, and divide again by 2 to get the radius of the Earth. -Doctor Rob, The Math Forum Check out our web site! http://mathforum.org/dr.math/
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