After the minute hand revolves around the center of the clock face for 3 circles, the hour hand revolves around the center of the clock face ()

After the minute hand rotates three times around the center of the clock face, the hour hand rotates (90 degrees) around the center of the clock face
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RELATED INFORMATIONS

1. The hour hand from 6 o'clock to 12 o'clock revolves () degrees around the center of the clock face
2. On the clock face, if the minute hand rotates one circle, then the degree of the clockwise rotation is______ ．
3. How many degrees does the minute hand rotate on the clock face
4. On the clock face, if the minute hand rotates for one circle, then the angle of the clockwise rotation is () degrees
5. On the clock face, if the minute hand rotates for one circle, how many degrees does the hour hand rotate?
6. On the clock face, if the minute hand rotates one circle, then the angle of the clockwise rotation is () degrees
7. From 3 p.m. to 9 p.m., the clock rotates () degrees clockwise
8. From 3 o'clock, after the clockwise rotation of 450 degrees, when does the clockwise point?
9. From 3:00 p.m. to 6:00 p.m., the hour hand rotates () degrees clockwise, and the hour hand walks (-) circles
10. From 3:00 p.m. to 9:00 p.m., the clock rotates () degrees clockwise
11. The minute hand on the clock goes 60 times faster than the hour hand______ ．
12. Judgment question: the ratio of the rotation speed of the hour hand and minute hand on the clock face is 1:60
13. On the clock, turn the clock clockwise from the number "12" to "6" for + 1 / 2 cycle, So, what is the number of the clock face that the hour hand refers to after setting the hour hand from "12" for - 1 / 4 week?
14. When the clock face rotates 40 ° clockwise, it is recorded as + 40 ° and what does - 40 ° mean
15. A round clock face, clockwise from "12" clockwise rotation () to "1"; clockwise from "3" clockwise rotation 120 degrees to ()
16. Square ABCD with side length 4, where point a is at the origin, point B is at the positive half axis of X axis, and point D is at the negative half axis of Y axis, what are the coordinates of the four vertices? Such as the title
17. The vertex a of square ABCD coincides with the origin of coordinates, and the coordinate of vertex B is (0,4), then the coordinate of vertex C is ()
18. Given a (0,4), B (3,0), P (1,0), in the rectangular coordinate system, O is the origin, and the triangle AOB rotates m counterclockwise around point P (M is greater than 0) Less than 180, get the triangle a1ob1, make the point B1 fall on the edge of the triangle AOB, calculate the coordinates of point B1
19. As shown in the figure, in the plane rectangular coordinate system, ob is on the x-axis, ∠ ABO = 90 ° and the coordinates of point a are (1,2). Rotate △ AOB 90 ° counterclockwise around point a, and the corresponding point C of point O just falls on a branch of hyperbola y = KX. (1) find the analytic formula of hyperbola. (2) the intersection of the straight line passing through point c y = - x + B and the hyperbola is e, and find the coordinates of point E and the area of △ EOC
20. As shown in the figure, in the coordinate system, point a (0,4) and point B (3,0) rotate △ ABO counterclockwise around point o 90 ° so that point a falls on point C on the x-axis and point B falls on point E on the y-axis (1) Verification: AE = oc-ob; (2) find the length of CF