The bearing of point is the number of degrees in angle measured in a clockwise direction from the north line to the line joining the center of the compass with the point.A bearing is used to represent the direction of one point relative to another point.Angle bearing are useful to the surveyor to demarcate the boundary of the land or building.
In math for student,bearing are define as an angle from North direction,follow clock wise .Let say there have 2 point A and B.So,bearing B from A is an angle from North direction at A,follow clock wise until meet a line connect to B point.The bearing A from B is the from North direction at B,follow clock wise until meet a line connect to A.
Tips are determine where is the North point.Secondly,determine the direction of North and then follow the clockwise from the North until meet the line connect to second point.The angle is name as a bearing . Actually in the question,the North point and angle not given directly but must find first with angle Law or Trigonometry Law(angle).Second mistake is clockwise direction.If the two tips are correct,the answer is always correct.
In the drawing survey,the property line are drawn with bearings and distances indicated with each line drawn.For example N 100٥ 12" 13' E 1223 m.This can be read more descriptively as North 100 degrees 12 minutes and 13 second for a distance of 123 meter.The distance is easy to understand but the direction might use some more explanation.
In a survey usually use a system of bearing based on deviation from north or south.A direction that is expressed as a standard bearing is also based on a 360 degree circle but uses different points of reference.A bearing of N 70 degrees east means the direction is 70 degrees to the east of north.also S 17 degrees east means the direction 15 degrees to the east of due south.
Usually a bearing expressed is degrees,minutes and seconds.Minutes and second are divisions of degree with one degree equal 60 minutes and one minute equal 60 seconds.Bearings always begin with N or S followed by degrees minutes and seconds and followed by east or west.
What is important of boundary reading?.Each of ours have land,building or property and have a land certificate from Land Office with a survey image show all the demarcation and boundary line.So all boundary line are expressed in bearing reading.We can check with the surveyor if our boundary line match with certificate or wrongly.The boundary line always can sparks argument with the neighbour.
I hope this small information is useful for all to avoid argument .Thank you
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