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From 2:15 to 2:35, the minute hand of the clock is gone______ Degrees, the clock is gone______ Degree
∵ the hour hand turns 0.5 ° per minute on the clock face, and the minute hand turns 6 ° per minute. After 20 minutes from 2:15 to 2:35, the minute hand of the clock moves 6 ° x 20 = 120 ° and the hour hand moves 0.5 ° x 20 = 10 °
Between 1:00 and 2:00, when the hour hand and the minute hand of the clock form a 90 degree angle, what is 1:00?
6x-6x*(1/12)-30=90
x=240/11
1:240 / 11
6x-6x*(1/12)-30=90
x=240/11
1:240 / 11
analysis:
Set 1:00, and after X minutes, the hour hand and minute hand form a 90 degree angle
The hour hand is one twelfth of the speed of the minute hand,
The minute hand passes 6x degrees in X minutes, and the hour hand passes 6x * (1 / 12) degrees
RELATED INFORMATIONS
- 1. At 2:25 p.m., what's the angle between the hour hand and the minute hand______ Degree
- 2. What is the degree of the acute angle between the hour hand and the minute hand of a clock at 2:16
- 3. As shown in the figure, how many degrees did the clock turn from 1:15 PM to 4:30 pm
- 4. At 2:30 p.m., the angle between the minute hand of the clock and the hour hand is degrees______ ．
- 5. At 4:30, what is the degree of the angle between the hour hand and the minute hand on the clock surface_________
- 6. What is the angle between the hour hand and the minute hand of a clock at 3:30? What is the angle at 4:00?
- 7. What is the angle between the hour hand and the minute hand of a clock at 1:30
- 8. On a watch, when is the angle between the hour hand and the minute hand equal at 4:30? What is the degree of the angle?
- 9. At 1:30 on the clock, the degree of the angle between the hour hand and the minute hand is () a.90 degree b.135 degree c.110 degree d.120 degree
- 10. If the clock goes from 2:30 to 2:55, what angle does the hour hand and minute hand turn
- 11. How many degrees does the clock turn from 2:00 to 3:30
- 12. How many degrees does the minute hand of the clock turn in one minute? How many degrees does the hour hand turn in one minute?
- 13. How many degrees does the minute hand of the clock turn in one minute?
- 14. What's the angle between the hour hand and the minute hand on the clock at 8:30
- 15. What is the angle between the hour hand and the minute hand on the clock at 8:20?
- 16. What's the angle between the hour hand and the clock?
- 17. From 2 o'clock to 4 o'clock, how many times did the hour hand of the clock and the minute hand form an angle of 60 degrees? What are the time and minutes?
- 18. In the clock, the hour hand starts from 5 o'clock. In a few minutes, the minute hand and the hour hand coincide for the first time
- 19. From 2:11 to 2:18, the rotation angle of the minute hand of the clock is 42 degrees. How many minutes has the minute hand of the clock coincided with the hour hand for the first time from 4 o'clock?
- 20. How many degrees does the minute hand of the clock turn from 2:15 to 2:30? Find the angle between the hour hand and the minute hand at 2:5? Find the angle between the hour hand and the minute hand at 2:40? Find the angle between the hour hand and the minute hand at 2:48?