Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 5 - No. 11)
If a person walks 5km on a bearing of 000 degrees, and then 12km on a bearing of 090 degrees, what is the direct distance to the original start position?
17km
13km
12.04km
5km
คำอธิบาย
Use Pythagorean theorem: √(5² + 12²) = 13km