Convert whole circle bearing to reduced quadrantal bearing
Answers
The quadrantal bearing (Q.B.) also known as reduced bearing (RB) of a line is defined by the acute angle which the line makes with the meridian. Thus, it depends on the quadrant in which the line presents. It is measured in clockwise or anti-clockwise direction either from the North or from the South limb of the meridian whichever is nearer and thus provides minimum angle. represents different types quadrantal bearings of lines. The bearings of OP, OQ, OR and OS are respectively, N 40°E, S49° E, S72° W, and N31° W. In all cases, values of bearing of angles lie between 0° and 90°.
Thus, reduced bearing of a line is designated by the direction from which it is measured (i.e., either N for North or S for South) followed by the value of the angle at the end, the direction to which it is measured (i.e., either E for East or W for West).