How many right angles do you make if you start facing: (a) South and turn clockwise to the west? (b) North and turn anti-clockwise to east? (c) West and turn to west? (d) South and turn to north?
Clockwise direction means turning in the same direction as clock hands and Anti clockwise means turning in the opposite direction of clock hands.
Answer: (a) 1 right angle (b) 3 right angle (c) 4 right angle (d) 2 right angle
Let's understand the concept of turning clockwise and anti-clockwise.
(a) When we turn left or right, we make 1 right angle.
Therefore, if you start facing South and turn clockwise to the West you made 1 right angle.
(b) we need to turn 3 times left in order to face East.
Therefore, if you start facing North and turn anti-clockwise to the East you made 3 right angles.
(c) We need to make one complete revolution in order to face the West again.
Therefore, if you start facing West and turn clockwise or anti-clockwise to the West you made 4 right angles.
(d) We need to turn Two times left or right in order to face North.