Question

the number of right angle turned through by the hour hand of a clock when it goes from ka a part
( a ) 3 to 9​

Answer 1

Answer:

i) 3 to 6

here, the hour hand moves from 3 to 6. it starts from 3 and covers digits 4, 5 and 6.

so, the hour hand-turned by one right angle.

Answer 2

Answer:

2 right angles

the measure of the right angle is 90°