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jaybear97

  • one year ago

Please help!

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  1. jaybear97
    • one year ago
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  2. jaybear97
    • one year ago
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    @mathmate

  3. mathmate
    • one year ago
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    Read through (especially theorem 4) of http://www.regentsprep.org/regents/math/geometry/gp15/circleangles.htm This will give you the central angle. What you need (x) is the supplement (i.e. subtract from 180\(^\circ\)) of the central angle.

  4. jaybear97
    • one year ago
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    110

  5. mathmate
    • one year ago
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    not too fast...lol Read carefully theorem 4 how to calculate correctly the central angle first. See if you can spot the error.

  6. jaybear97
    • one year ago
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    hmm...??

  7. mathmate
    • one year ago
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    The central angle is half the sum of the two arcs, which gives you ?

  8. jaybear97
    • one year ago
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    55/

  9. mathmate
    • one year ago
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    half the sum of the two arcs = (1/2)(28+42) = ?

  10. jaybear97
    • one year ago
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    35

  11. mathmate
    • one year ago
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    Excellent, so x=?

  12. jaybear97
    • one year ago
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    35?

  13. mathmate
    • one year ago
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    Please go back to the link and read up on theorem 4 to see what 35 degrees represent, and then reread the diagram of the question. You'll find the answer between the two.

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