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KnightRider

  • 5 years ago

how to find angle b/w two vertex in a circle????

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  1. anonymous
    • 5 years ago
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    u have picture?

  2. knightrider
    • 5 years ago
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    wait

  3. anonymous
    • 5 years ago
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    what do u mean by vertex in a circle?

  4. anonymous
    • 5 years ago
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    yeah..a picture might help

  5. anonymous
    • 5 years ago
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    ?

  6. knightrider
    • 5 years ago
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    i'm trying to find a picture pls w8 for couple of more mis

  7. anonymous
    • 5 years ago
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    I be back, the angles depen

  8. knightrider
    • 5 years ago
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    here is the pic

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  9. knightrider
    • 5 years ago
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    angle b/w A and B

  10. anonymous
    • 5 years ago
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    what w?

  11. anonymous
    • 5 years ago
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    between A and B?

  12. knightrider
    • 5 years ago
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    yeah

  13. anonymous
    • 5 years ago
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    A and B are the points on a circle, u can find the central angle of the arecAB

  14. anonymous
    • 5 years ago
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    arc AB*

  15. anonymous
    • 5 years ago
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    just 90 degrees lol

  16. anonymous
    • 5 years ago
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    why make it complicated

  17. anonymous
    • 5 years ago
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    well, the figure is drawn roughly, may not b perpendicular

  18. knightrider
    • 5 years ago
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    how to find the central angle

  19. anonymous
    • 5 years ago
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    >>

  20. anonymous
    • 5 years ago
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    u need more info, the radius and the length of arc

  21. anonymous
    • 5 years ago
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    \[r=l \theta\]

  22. anonymous
    • 5 years ago
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    \[l=r \theta\]

  23. anonymous
    • 5 years ago
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    arc length=radius * central angle

  24. anonymous
    • 5 years ago
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    A B is 90 degree then the central angle is the same

  25. anonymous
    • 5 years ago
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    yeh, thats prob it , im not paying much attention tonight

  26. anonymous
    • 5 years ago
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    the angle on the circle is 1/2 angles in center

  27. knightrider
    • 5 years ago
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    radius is 50 mm and length is 78.5 mm but i'm getting 1.57 deg

  28. anonymous
    • 5 years ago
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    the answer you get is in radians

  29. anonymous
    • 5 years ago
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    78.5/50

  30. anonymous
    • 5 years ago
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    if you are using l =r theta

  31. anonymous
    • 5 years ago
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    pi radians = 180 degrees , therefore 1 radian = 180 / pi degrees

  32. anonymous
    • 5 years ago
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    which works out as 90degrees exactly

  33. anonymous
    • 5 years ago
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    so I was right from the start :P

  34. anonymous
    • 5 years ago
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    how come?

  35. anonymous
    • 5 years ago
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    what do u mean how come, I was right

  36. anonymous
    • 5 years ago
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    right if the lines are perpendicular,

  37. anonymous
    • 5 years ago
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    well, it turns out they are :P

  38. anonymous
    • 5 years ago
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    yes, the seem to be :)

  39. anonymous
    • 5 years ago
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    but actually the qs is to find the angle b/w A n B

  40. anonymous
    • 5 years ago
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    your point?

  41. anonymous
    • 5 years ago
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    angle is 90 , done

  42. anonymous
    • 5 years ago
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    angle is 90 , done

  43. anonymous
    • 5 years ago
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    conditiionally done ;)

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