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first you draw a line between the two points then draw the north line. remember you always measure clockwise. then measure in between the north line to the line between the both points. then whatever you get in between subtract that from 360 degrees e.g 100-360=260 then that's your answer.

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Q: How do you calculate a back bearing in maths?
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When bearing is greater than 180 how to calculate back bearing?

when bearing is greater than 180 In order to calculate back bearing subtract bearing from 360


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