On the clock face, when the minute hand rotates three times, the angle that the hour hand rotates is () A. Right angle B. acute angle C. obtuse angle D. no legal angle

On the clock face, when the minute hand rotates three times, the angle that the hour hand rotates is () A. Right angle B. acute angle C. obtuse angle D. no legal angle

360 ° 60 = 6 ° and 15 × 6 ° 90 ° respectively, so the rotation angle of the hour hand is a right angle

When the minute hand rotates three times on the clock face, what is the angle that the hour hand rotates?

Right angle

The minute hand and the hour hand on the clock face rotate from 12. When the minute hand rotates 3 times, the hour hand rotates () degrees

It's 90 degrees~
Every minute hand revolves for one hour
When the minute hand rotates three times
Three hours later
Three hours is a quarter of twelve
So the clock rotates by a quarter of 360 degrees
90 degrees