We need to find the distance between A and B. Horizontal distance = 6 + 6 = 12 km Vertical distance = 5 km Hence using the Pythagoras theorem, we need to have ⇒AB2=122+52 ⇒AB2=144+25 ⇒AB2=169 ⇒AB2=13 Hence, the distance between the starting point and the endpoint = 13 km And the direction is of course north-west as we can observe from the above image Question