bearings

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bearings

Postby Sara C » Thu Mar 27, 2008 7:36 am

how would you convert 121 degrees and 20' into just degrees??? and also 34 degrees and 47' ?
Sara C
 

Re: bearings

Postby Guest » Thu Mar 27, 2008 6:34 pm

Sara C wrote:how would you convert 121 degrees and 20' into just degrees??? and also 34 degrees and 47' ?


60' = 1°
So just divide the minutes by 60' to convert it to a fraction of a degree, add to the whole degrees
121°20' = 121 + 20/60 = 121.33°
Since many of the numbers aren't exactly divisible by 60, some rounding occurs. One solution is to carry a guard digit, 121.333°, through any further computations and only round the final answer.
Guest
 


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