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mckenzieandjesus

  • one year ago

What is the value of b? 90 75 80 100

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  1. mckenzieandjesus
    • one year ago
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  2. mckenzieandjesus
    • one year ago
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    @TrojanPoem

  3. mckenzieandjesus
    • one year ago
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    @ganeshie8 can u please help me?

  4. TrojanPoem
    • one year ago
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    Sorry I am checking other question so mixing up. give me a second.

  5. mckenzieandjesus
    • one year ago
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    ok

  6. jdoe0001
    • one year ago
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    hmm is "b" meant to be on a tangential line?

  7. jdoe0001
    • one year ago
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    that is |dw:1435704514383:dw|

  8. mckenzieandjesus
    • one year ago
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    idk

  9. mckenzieandjesus
    • one year ago
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    maybe

  10. jdoe0001
    • one year ago
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    hmmm

  11. jdoe0001
    • one year ago
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    so... got any ideas on what "a" is?

  12. mckenzieandjesus
    • one year ago
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    no..

  13. jdoe0001
    • one year ago
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    something tells me is not a tangent :/

  14. jdoe0001
    • one year ago
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    ok hmmm http://jwilson.coe.uga.edu/emt668/EMAT6680.2003.fall/Nichols/6690/Webpage/Day%204_files/image016.gif <--- notice that "inscribed angle and intercepted arc" theorem what do you think "a" is?

  15. jdoe0001
    • one year ago
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    let us assume that line is a tangent

  16. mckenzieandjesus
    • one year ago
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    ok..

  17. jdoe0001
    • one year ago
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    so.. using that theorem... what would you get for "a"? what is m<a?

  18. jdoe0001
    • one year ago
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    notice, that theorem plainly says the inscribed angle, is HALF of the intercepted arc

  19. mckenzieandjesus
    • one year ago
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    i cant figure out how exactly to find it.. do i need a to find b?

  20. jdoe0001
    • one year ago
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    so.... using that... what would we get for "a"?

  21. mckenzieandjesus
    • one year ago
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    55?

  22. jdoe0001
    • one year ago
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    55? well.. how did you get 55 then?

  23. mckenzieandjesus
    • one year ago
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    isnt it half of 110?

  24. jdoe0001
    • one year ago
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    well.. how does 110 come in?

  25. mckenzieandjesus
    • one year ago
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    idk i thought thats what u were talking about.. im confused

  26. jdoe0001
    • one year ago
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    notice the "intercepted arc" from the "inscribed angle" \(\measuredangle a\)

  27. jdoe0001
    • one year ago
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    so.. that makes "a" = ?

  28. mckenzieandjesus
    • one year ago
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    90?

  29. mckenzieandjesus
    • one year ago
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    @jdoe0001 this one

  30. jdoe0001
    • one year ago
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    hmm ahemm nope check the "intercepted arc and inscribed angle" theorem "a" is inscribed and is intercepting an arc that is 90 degrees... thus angle "a" is ?

  31. mckenzieandjesus
    • one year ago
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    i looked up inscribed angle thereom: The inscribed angle theorem states that an angle θ inscribed in a circle is half of the central angle 2θ that subtends the same arc on the circle. Therefore, the angle does not change as its vertex is moved to different positions on the circle.

  32. jdoe0001
    • one year ago
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    and so... "a" gives us?

  33. mckenzieandjesus
    • one year ago
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    45?

  34. mckenzieandjesus
    • one year ago
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    right?

  35. jdoe0001
    • one year ago
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    "a" is half of the intercepted arc, so yes the arc is 90, the angle is half that, or 45 so hmmm one sec

  36. mckenzieandjesus
    • one year ago
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    yes. Ok.

  37. jdoe0001
    • one year ago
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    anyway so using another theorem of a tangent hitting a chord |dw:1435707709250:dw|

  38. jdoe0001
    • one year ago
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    gimme another sec =)

  39. mckenzieandjesus
    • one year ago
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    45*1/2= 22 1/2

  40. mckenzieandjesus
    • one year ago
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    im petty sure its 90

  41. mckenzieandjesus
    • one year ago
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    pretty*

  42. jdoe0001
    • one year ago
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    hmmm so |dw:1435708204884:dw|

  43. jdoe0001
    • one year ago
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    so... what do you think b =? then

  44. mckenzieandjesus
    • one year ago
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    huh?

  45. mckenzieandjesus
    • one year ago
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    Im confused but i think b is 90

  46. mckenzieandjesus
    • one year ago
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    how is the other side 250?

  47. jdoe0001
    • one year ago
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    well... hmm lemme put it this way |dw:1435708342095:dw|

  48. jdoe0001
    • one year ago
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    because, one "arc" is already 110 a circle only has 360 degrees if one arc is taking up 110 its "counterpart" is taking up the rest

  49. mckenzieandjesus
    • one year ago
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    yeah i know the circle adds up to 360 degrees...

  50. jdoe0001
    • one year ago
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    so.... that makes the other arc 250 degrees :)

  51. mckenzieandjesus
    • one year ago
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    yeah but i need to find B

  52. jdoe0001
    • one year ago
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    so.. if that arc is 250 degrees, what do you think is the angle there, hitting the tangent and the chord?

  53. mckenzieandjesus
    • one year ago
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    uhm..

  54. mckenzieandjesus
    • one year ago
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    if 250+110= 360 hows there another angle left? it only goes to 360 so im still lost

  55. jdoe0001
    • one year ago
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    |dw:1435708607217:dw|

  56. mckenzieandjesus
    • one year ago
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    well u said a = 45

  57. jdoe0001
    • one year ago
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    notice, that angle is really b+a so...we know the arc on that end is 250 degrees so that makes that angle, the angle b+a equals to?

  58. mckenzieandjesus
    • one year ago
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    r u saying b+a=250?

  59. mckenzieandjesus
    • one year ago
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    b+45=250?

  60. jdoe0001
    • one year ago
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    hmm you're mixing up ... angles and arcs nope, the arc is 250, the angle we dunno

  61. mckenzieandjesus
    • one year ago
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    45+45=90?

  62. mckenzieandjesus
    • one year ago
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    well i dont get it.

  63. jdoe0001
    • one year ago
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    well. that's the "central angle" for the intercepted arc for inscribed angle "a", yes

  64. mckenzieandjesus
    • one year ago
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    45+90+100=235

  65. mckenzieandjesus
    • one year ago
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    none of them add up

  66. jdoe0001
    • one year ago
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    let us take what we know |dw:1435708854378:dw|

  67. mckenzieandjesus
    • one year ago
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    45+90=135?

  68. jdoe0001
    • one year ago
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    so.. hmm let us take so far what we know... so...the inscribed angle "a" is half the intercepted arc, so.... half 90, right?

  69. mckenzieandjesus
    • one year ago
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    yes 45..

  70. jdoe0001
    • one year ago
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    ok so |dw:1435709025266:dw|

  71. mckenzieandjesus
    • one year ago
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    55?

  72. mckenzieandjesus
    • one year ago
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    am i supposed to split 110 in half?

  73. jdoe0001
    • one year ago
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    55? notice, 110 is taking one side of the circle and the OTHER arc, is taking up the REST of the circle if it were 55, then the circle would be 55+110 degrees

  74. mckenzieandjesus
    • one year ago
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    well u said its 110+250.....

  75. mckenzieandjesus
    • one year ago
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    I have to go bye

  76. jdoe0001
    • one year ago
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    the other arc is 250 because a circle has 360 degrees 360 - 100 the rest is 250 degrees thus |dw:1435709354485:dw| keep in mind that |dw:1435709389265:dw|

  77. mckenzieandjesus
    • one year ago
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    i figured out the answer from somebody else.. Thank u for trying to help

  78. mckenzieandjesus
    • one year ago
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    80 degrees

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