Mark me as a brainlist
Two right angles are formed during each hourly period 4-5, 5-6, 6-7, 7-8, 8-9.
However, when the clock reaches 9pm, this coincides with the second 90° between the hours of 8-9. The clock has then to reach approximately 9.34pm for the only occasion when the hands will be at 90° in the hour 9-10.
2 times every hour
1 time between 3-4 and 8-9
as the ratio is more it is obvious
b) 48 times the clock hand will be at right angle
Because in 12 hrs they are at right angles 22 times
In 24 hrs they are at right angle 44 times
5 soory i think that it is right ans
one in Am and Second in pm