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anonymous

  • one year ago

HELP. Metal!! 10 points!!!! Find the area of ABC. Round your answer to the nearest tenth. measure A=23, measure C=39 and b = 14.6

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  1. anonymous
    • one year ago
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    @welshfella @misty1212 @ anyone pls !!

  2. anonymous
    • one year ago
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    im sorry:( i wish i could help. i suck at math. I can give you a medal though

  3. anonymous
    • one year ago
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    was offering it as a reward to whoeverhelped, but thank you!

  4. anonymous
    • one year ago
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    haha oops. still i can give you one can you help me with my question?

  5. anonymous
    • one year ago
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    will totally try, however im reaaaaaally bad a math ):

  6. anonymous
    • one year ago
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    same. i wish i could help you. hope you get help

  7. welshfella
    • one year ago
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    |dw:1436980005424:dw|

  8. anonymous
    • one year ago
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    how do i find the base/height? @welshfella

  9. welshfella
    • one year ago
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    well you can find the length of a using the Sine Law then theres a formula for the area in terms of 2 sides and the sine of the included angle

  10. welshfella
    • one year ago
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    a sine 23 = 14.6 / sine B B = 180 - (39+23)

  11. welshfella
    • one year ago
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    * a / sin 23

  12. anonymous
    • one year ago
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    118?

  13. welshfella
    • one year ago
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    thats angle B yea

  14. anonymous
    • one year ago
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    what now?

  15. welshfella
    • one year ago
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    well find the length of a using the sine rule as above

  16. welshfella
    • one year ago
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    a / sin 23 = 14.6 / sin 118 solve for a

  17. welshfella
    • one year ago
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    then Area = 0.5 * a*b sin C

  18. anonymous
    • one year ago
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    @welshfella i got 6.46

  19. welshfella
    • one year ago
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    ok so plug a = 6.46 b = 14.6 and C = 39 in the formula for the area and you have ur answer

  20. welshfella
    • one year ago
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    6.46 is correct for a

  21. anonymous
    • one year ago
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    1/2 base x height?

  22. anonymous
    • one year ago
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    how do i get height?

  23. welshfella
    • one year ago
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    NO - use the formula i posted 5 posts back

  24. anonymous
    • one year ago
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    a sine 23 = 14.6 / sine B B = 180 - (39+23)

  25. welshfella
    • one year ago
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    Area = 0.5ab cos

  26. anonymous
    • one year ago
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    sorry, i am confused. i really need things written out

  27. welshfella
    • one year ago
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    *cos C

  28. welshfella
    • one year ago
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    Area = 0.5 * a*b*cos C

  29. anonymous
    • one year ago
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    36.6! ..?

  30. anonymous
    • one year ago
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    thats not right

  31. welshfella
    • one year ago
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    0.5 *6.46*14.6*sin 39 oh sorry its sin 39 not cos 39

  32. welshfella
    • one year ago
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    that's 29.68

  33. anonymous
    • one year ago
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    thank you so much!!

  34. welshfella
    • one year ago
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    yw

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