If the quadrantal bearing of a line AB is S31°35’E, then its whole circle bearing is equal to:
Whole Circle Bearing (WCB):- The magnetic bearing of a line measured clockwise from the north pole towards the line, is known as the ‘whole circle bearing, of that line. Such a bearing may have any value between 0° and 360°.
Reduced Bearing (RB):-
When the whole circle bearing of a line is converted to a quadrantal bearing, it is termed the ‘reduced bearing’. Thus, the reduced bearing is similar to the quadrantal bearing. Its value lies between 0° and 90°, but the quadrants should be mentioned for proper designation.
The following table should be remembered for the conversion of WCB to RB: