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anonymous

  • one year ago

What is the value of x? 47 33 28 56

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  1. anonymous
    • one year ago
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  2. nincompoop
    • one year ago
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    that's tough very tough what have you learned so far?

  3. mathstudent55
    • one year ago
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    \(c = \dfrac{a + b}{2} \) |dw:1437334141875:dw|

  4. nincompoop
    • one year ago
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    nice formula, but how did you get that? throwing formulas do not really give people intuitive ideas

  5. mathmate
    • one year ago
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    Hint: See http://www.regentsprep.org/regents/math/geometry/gp15/circleangles.htm

  6. anonymous
    • one year ago
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    @mathmate that actually did help, thank you !

  7. nincompoop
    • one year ago
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    that still doesn't answer how the formula came to be

  8. mathmate
    • one year ago
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    |dw:1437335336370:dw| x=a/2+b/2=(a+b)/2 (exterior angles) a/2 and b/2 follow from the central angle theorem. @nincompoop

  9. mathmate
    • one year ago
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    @dani_00 You're welcome! :)

  10. mathstudent55
    • one year ago
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    @dani_00 Did you get an answer?

  11. anonymous
    • one year ago
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    i got 28 but im not sure if its correct

  12. anonymous
    • one year ago
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    @mathstudent55

  13. mathmate
    • one year ago
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    @dani_00 Look at the link I gave you, scroll to item #4, and apply the formula to find x. Please tell me what you get.

  14. anonymous
    • one year ago
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    i got 47

  15. anonymous
    • one year ago
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    thank you @mathmate

  16. mathmate
    • one year ago
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    Correct! You're welcome! :)

  17. mathstudent55
    • one year ago
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    That is it!|dw:1437338232247:dw|

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