Sunit is going towards north, after going 8 km he turns left and goes 6 km. What is the distance of Sunit from the initial point?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → 10 km
A turn is taken from the direction he is facing at that moment: facing North, a left turn is West.
The 8 km North and the 6 km West are at right angles, so the straight-line distance from the start is the hypotenuse of a right triangle (Pythagoras):
Distance \(=\sqrt{8^2+6^2}=\sqrt{64+36}=\sqrt{100}=10\) km