Convert the following reduced bearings:

Convert the following reduced bearings to whole circle bearings

(a)        N 68^o 32′ E (b)            S 37^o16′ E (c)  S 54^o32′ W (d)            N 39^o52′ W.

(a)                                                        (b)

(c)                                                        (d)

Figure: WCB from RB

Solution

(a)        RB = N 68^o 32′ E

First Quadrant WCB = RB

= 68^o 32′

(b)       RB = S 37^o 16′ E Second Quadrant

WCB = 180^o - RB

= 180^o - 37^o16′

= 142^o 44′

(c)        RB = S 54^o 32′ W Third Quadrant

WCB = 180^o + RB

= 180^o + 54^o 32′

= 234^o 32′

(d)       RB = N 39^o 52′ W Fourth Quadrant

WCB = 360^o - 39^o 52′

= 320^o 08′