If the clock strikes at every hour, the number of times it strikes is equal to the number of the clock points, and it strikes at every half hour, then the clock strikes day and night______ Next

Number of times of punctual beating: (1 + 2 +...) +12) X 2 = (1 + 12) △ 2 × 12 × 2 = 156 (Times) the number of half point knocks: 12 × 2 = 24 (Times) a day and a night total knocks: 156 + 24 = 180 (Times) a day and a night total knocks 180 times. So the answer is: 180

The number of times that a clock strikes at every hour is equal to the number of times that the clock counts. How many times does it strike at every half hour?
180 times, please make a formula,

The clock has only 12 punctual hours, two laps a day
Times of punctual beating:
（1+2+...+12)*2
=(1+12)/2*12*2
=156 times
Number of half point knocks:
12 × 2 = 24 times
A total of 156 + 24 beats in one day and night

If the clock strikes at every hour, the number of times it strikes is equal to the number of the clock points, and it strikes at every half hour, then the clock strikes day and night______ Next

The minute hand rotates on the clock face. In a week, the angle of rotation a (degree) and the time of rotation t (minute). Write their positive proportion formula and write the reason

Because the minute hand rotates 360 degrees
And because it takes 60 minutes to spin a circle
So the ratio is 6:1 (degrees per minute)

When the hour hand turns around the clock face, how many times does the minute hand turn around the clock face

12 times

When the minute hand on the clock rotates three times, the angle that the clock rotates is a right angle

Right!
The watch is a circle of 360 degrees, divided into 12 divisions equally, one division per hour is equal to 360 / 12 = 30 degrees, the minute hand runs a circle, the hour hand walks a large division, 30 * 3 = 90 degrees, it is a right angle, so it is correct!

When the minute hand goes around the clock face, what is the angle of the hour hand______ Degree

Every time the minute hand on the clock turns one circle, the hour hand turns 30 degrees

If there is an option in the circle of 60 / 720, I think it should be one of the choices,

The problem is that there is a problem
The hour hand turns one circle for 12 hours, and the minute hand turns one circle every hour
One turn of the clock is 720 minutes

The length of the hour hand of a clock is 10 cm. How many cm does the tip of the pointer travel in a day and night
emergency

The clock goes two times a day and night
That is, 2 × 2 × 3.14 × 10 = 125.6 (CM)
A: the tip of the pointer walked 125.6 cm day and night

If the clock strikes at every hour, the number of times it strikes is equal to the number of the clock points, and it strikes at every half hour, then the clock strikes day and night______ Next