Question

Find the angle between the minute hand of a clock and the hour hand when the time is 7:20 a.m. (TRIGONOMETRY)

Answer 1

Answer:

90*

Explanation:

When you observe the clock, you'll see that 12,3,6 and 9 are perpendicular to each other similarly if you add these numbers with 5min (on the clock) it also forms a perpendicular angle.

Now you see 15 min (3'o clock) and 30 min(6'o clock) at 6:15 the minute and hour hand form 90*

Now by adding 5min + 15 min = 20 min (minute hand in question) and adding 6hrs + 1hr =7 hr (hour hand in question) you'll see that they are being added with same angle component in clock

so, it forms 90*.