Question

Find the number of right angles turned through by the han and of a clock when it goes from 3 to 9

Answer 1

Answer:

The hour hand of a clock revolves by 270 degree of 3 right angles when it goes from 12 to 9. Hence, three right angles. When we move from 12 to 9, we move 9 hours and 3/4 revolution and that is 1 right angles

is this clear!