Mathematics for IGCSE & O level - Scale Drawings (Section 2 - No. 21)
If the bearing of X from Y is 120 degrees, what is the bearing of Y from X?
30 degrees
60 degrees
240 degrees
300 degrees
Açıklama
Add 180 degrees: 120 + 180 = 300 degrees. But, since 120 is less than 180, you subtract it to get 120 - 180 = -60, so 120 +180 -360 = -60 + 360 = 300