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Emily778 Group Title

Find the value of x.

  • one year ago
  • one year ago

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  1. Emily778 Group Title
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    • one year ago
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  2. charlieberzak Group Title
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    :P :P :P

    • one year ago
  3. Emily778 Group Title
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    Not the greatest picture in the world.

    • one year ago
  4. charlieberzak Group Title
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    not hd, huh

    • one year ago
  5. Emily778 Group Title
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    What do you think it is?

    • one year ago
  6. charlieberzak Group Title
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    but it looks cool, white crystals, me and my uncle went crystal picking and we also found some cool ones... but mine were purple

    • one year ago
  7. charlieberzak Group Title
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    i have not idea, a crystal lol

    • one year ago
  8. Emily778 Group Title
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    they're a pale pink, actually.

    • one year ago
  9. Fazeelayaz Group Title
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    rock

    • one year ago
  10. Kapt_Crazy Group Title
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    ok emily this is another simple one. x is the radius of the circle right.

    • one year ago
  11. Emily778 Group Title
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    yep

    • one year ago
  12. Emily778 Group Title
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    what do I do?

    • one year ago
  13. Kapt_Crazy Group Title
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    is the 12 the length of the whole line or just up the the point where the line of 9 meets it

    • one year ago
  14. Emily778 Group Title
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    I think it's just where the 9 meets

    • one year ago
  15. Kapt_Crazy Group Title
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    |dw:1369728122034:dw|

    • one year ago
  16. Kapt_Crazy Group Title
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    u see the kind of dotted line right. that makes ur triangle and the raduis. so the ans for the dotted line is = x

    • one year ago
  17. Kapt_Crazy Group Title
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    do u understand

    • one year ago
  18. Emily778 Group Title
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    yes

    • one year ago
  19. Kapt_Crazy Group Title
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    so what ans did u get

    • one year ago
  20. Emily778 Group Title
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    15.

    • one year ago
  21. Kapt_Crazy Group Title
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    yeah u right

    • one year ago
  22. Emily778 Group Title
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    ok :) thanks.

    • one year ago
  23. Emily778 Group Title
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    What about this one?

    • one year ago
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  24. Emily778 Group Title
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    @Kapt_Crazy

    • one year ago
  25. qweqwe123123123123111 Group Title
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    The answer to the first problem is not 15.

    • one year ago
  26. Emily778 Group Title
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    i think it's 40.

    • one year ago
  27. Kapt_Crazy Group Title
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    do u need to calculate the angle

    • one year ago
  28. Emily778 Group Title
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    prove it.

    • one year ago
  29. charlieberzak Group Title
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    lol what a challenge

    • one year ago
  30. qweqwe123123123123111 Group Title
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    It's an easy one, actually. Since the "9" line is right to the "12" line, you know that it also bisects the "12". Which means that you have a right triangle with a long leg of 9, a short leg of 6, and the hypotenuse of that triangle would be the radius of the circle - which also just happens to be what "x" is.

    • one year ago
  31. Kapt_Crazy Group Title
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    those angles well be equal because

    • one year ago
  32. Emily778 Group Title
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    so it's 12?

    • one year ago
  33. Kapt_Crazy Group Title
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    |dw:1369728687803:dw|

    • one year ago
  34. qweqwe123123123123111 Group Title
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    |dw:1369728693846:dw|

    • one year ago
  35. Kapt_Crazy Group Title
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    |dw:1369728808616:dw|

    • one year ago
  36. Emily778 Group Title
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    is the first one actually 15?

    • one year ago
  37. Kapt_Crazy Group Title
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    and if the lines are the same length rhss then the angles are the sme

    • one year ago
  38. yummydum Group Title
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    is the entire line 12, or is half the line 12?

    • one year ago
  39. qweqwe123123123123111 Group Title
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    - "is the first one actually 15?" Which part of "The answer to the first problem is not 15" is giving you problems? Look at my diagram and all will be clear - IF you THINK about it.

    • one year ago
  40. Kapt_Crazy Group Title
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    qweqwe is right if the line full length is 12. but if it was the full length the would have centerewd the 12 and not had it ofcentered

    • one year ago
  41. Kapt_Crazy Group Title
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    off centered

    • one year ago
  42. yummydum Group Title
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    it goes out from the radius perpendicularly, it cant be off-center

    • one year ago
  43. Kapt_Crazy Group Title
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    |dw:1369729065516:dw|

    • one year ago
  44. Kapt_Crazy Group Title
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    |dw:1369729144486:dw|

    • one year ago
  45. Kapt_Crazy Group Title
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    i still believe the ans is 15

    • one year ago
  46. qweqwe123123123123111 Group Title
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    Yes, I see what you're saying, and you may have a valid point. And if the picture is drawn to scale, then your argument is further supported. So if the long leg is 12, then the radius is indeed a nice, neat 15.

    • one year ago
  47. Kapt_Crazy Group Title
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    yeah else it would be 10. sumthing

    • one year ago
  48. Fazeelayaz Group Title
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    sqrt117 36+81=117

    • one year ago
  49. qweqwe123123123123111 Group Title
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    Yeah, a far less than neat 10.82 or so. :-)

    • one year ago
  50. Fazeelayaz Group Title
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    are there any details aabout the length AB and CD are they given equal in question

    • one year ago
  51. qweqwe123123123123111 Group Title
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    I'm gonna go with Kapt_Crazy on this one and say that the radius IS 15 for the first problem, based on the offset "12". But it sure would help if the producers of these diagrams would make things unambiguous for the viewers. On the last problem a leg was found based on the assumption that a particular line was tangent, without the problem giving any clues that it was. And as for the second problem, the 2 chords have hash marks which means they're congruent. If the 2 chords are congruent, then so are the angles they subtend, so x=40

    • one year ago
  52. phi Group Title
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    **. If the 2 chords are congruent, then so are the angles they subtend, so x=40 this follows from the two triangles being congruent by side-side-side: (radius, radius, = chord). therefore by corresponding parts of congruent triangles, the central angles are congruent.

    • one year ago
  53. Emily778 Group Title
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    Thanks y'all

    • one year ago
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