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Clock Geometry

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72 diapositives · 951 Views · Jul 27, 2014

Clock Geometry. Half Past Quarter Past Quarter Till. How many hours does one revolution of the minute hand around the face of a clock represent?. How many hours does one revolution of the minute hand around the face of a clock represent?. 1.

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Clock Geometry
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  1. Clock Geometry

  2. Half Past Quarter Past Quarter Till

  3. How many hours does one revolution of the minute hand around the face of a clock represent?

  4. How many hours does one revolution of the minute hand around the face of a clock represent? 1

  5. How many minutes does one revolution of the minute hand around the face of a clock represent?

  6. How many minutes does one revolution of the minute hand around the face of a clock represent? 60

  7. If there are 12 numbers on a clock, how many minutes are there between 2 consecutive numbers?

  8. If there are 12 numbers on a clock, how many minutes are there between 2 consecutive numbers? 60 ÷12=5

  9. How many minutes are there between the numbers 12 and 6?

  10. How many minutes are there between the numbers 12 and 6? 5x6=30

  11. 30 is what part of 60?

  12. 30 is what part of 60? One half

  13. How is another way to express the time 12:30?

  14. How is another way to express the time 12:30? Half past twelve

  15. How many minutes are there between the numbers 12 and 3?

  16. How many minutes are there between the numbers 12 and 3? 5x3=15

  17. 15 is what part of 60?

  18. 15 is what part of 60? One quarter

  19. How is another way to express the time 12:15?

  20. How is another way to express the time 12:15? Quarter past twelve

  21. How many minutes are there between the numbers 9 and 12?

  22. How many minutes are there between the numbers 9 and 12? 5x3=15

  23. 15 is what part of 60?

  24. 15 is what part of 60? One quarter

  25. How is another way to express the time 12:45?

  26. How is another way to express the time 12:45? Quarter till one

  27. The Clock as A Geometric Figure

  28. What geometric figure does the face of this clock represent?

  29. What geometric figure does the face of this clock represent? A circle

  30. How many degrees are there in a circle?

  31. How many degrees are there in a circle? 360°

  32. How many minutes are there in one revolution of the minute hand?

  33. How many minutes are there in one revolution of the minute hand? 60

  34. If a clock can be seen as a circle, how many degrees does each minute represent?

  35. If a clock can be seen as a circle, how many degrees does each minute represent? 360°÷60=6°

  36. How many minutes are there between the numbers 12 and 1 on a clock?

  37. How many minutes are there between the numbers 12 and 1 on a clock? 5

  38. How many degrees are there between the numbers 12 and 1 on a clock?

  39. How many degrees are there between the numbers 12 and 1 on a clock? 6°x5=30°

  40. How many minutes are there between the numbers 12 and 3 on a clock?

  41. How many minutes are there between the numbers 12 and 3 on a clock? 15

  42. How many degrees are there between the numbers 12 and 3 on a clock?

  43. How many degrees are there between the numbers 12 and 3 on a clock? 6°x15=90°

  44. If we draw a line from the center of the clock to the number 12, another line from the number 12 to the number 3, and a third line from the number 3 back to the center of the clock, what geometric figure do we have?

  45. If we draw a line from the center of the clock to the number 12, another line from the number 12 to the number 3, and a third line from the number 3 back to the center of the clock, what geometric figure do we have? A triangle

  46. If there are 90° between the number 12 and the number 3, how many degrees are there in the angle at the center of the circle?

  47. If there are 90° between the number 12 and the number 3, how many degrees are there in the angle at the center of the circle? 90°

  48. Can this triangle be called a right triangle?

  49. Can this triangle be called a right triangle? Yes, a right triangle is a triangle with one 90° angle.

  50. If the three angles of a triangle add up to 180°, and the angle at the center of the circle is 90°, and the other two angles are equal, how many degrees are in each?