Mathematics for IGCSE & O level - Scale Drawings (Section 1 - No. 31)
What is the reverse bearing if a bearing is 200°?
20°
70°
200°
200° + 180°
הֶסבֵּר
The reverse bearing is found by adding 180° to the original bearing if it's less than 180°, but we subtract 180° if it's greater.