WAEC - Mathematics (2004 - No. 29)
A point X is on the bearing 342o from a point Y. What is the bearing of Y from X?
342o
252o
198o
162o
Giải thích
If x is the bearing 342ofrom a point y
= 360o - 342o = 18o;
The bearing of y from x = 180o - 18o = 162o
= 360o - 342o = 18o;
The bearing of y from x = 180o - 18o = 162o