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anonymous

  • one year ago

law of sines pls help will become fan and give medal find the area of ABC. round your answer to the nearest tenth. m<B=87, a=10.1, c=9.8

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  1. anonymous
    • one year ago
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    a. 44.5 c. 49.4 b. 33.6 d. 77.1

  2. jdoe0001
    • one year ago
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    hmm well. if you're using the "law of sines', that may not give you that much, since you only have one angle and its side is missing even if you were to find the side "b", how are you meant to get the area?

  3. anonymous
    • one year ago
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    no idea thats just what the question asks

  4. jdoe0001
    • one year ago
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    well. have you covered the law of sines?

  5. jdoe0001
    • one year ago
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    or have you covered the law of cosines? how about heron's formula?

  6. anonymous
    • one year ago
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    no idea on any of that

  7. anonymous
    • one year ago
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    i know the law of sines formula

  8. anonymous
    • one year ago
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    i got c for this question is that right

  9. jdoe0001
    • one year ago
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    how did you get "c", if you dunno any of the sections above?

  10. anonymous
    • one year ago
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    49

  11. anonymous
    • one year ago
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    i just said i know law of sines

  12. jdoe0001
    • one year ago
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    anyhow, in this case what I'd use is the law of cosines, and then heron's formula but you haven't covered either, thus, you may want to do that firstly check your material for both, otherwise, I'd say the exercise doesn't apply to you

  13. jdoe0001
    • one year ago
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    the law of sines alone in this case, is not help, because side "b" is missing

  14. anonymous
    • one year ago
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    1/2 * (10.1*9.8 SINS 87) and i got 49

  15. jdoe0001
    • one year ago
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    1/2 base * height, to get the area of a triangle, only applies to right-triangles this one doesn't come across to me to be one

  16. jdoe0001
    • one year ago
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    well.. .I take that back 1/2 base * height does apply to all triangles BUT we dunno the triangles altitude, or height in this case, just its base

  17. anonymous
    • one year ago
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    well i got 49 and thats an option so thats what im putting

  18. anonymous
    • one year ago
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    i dont know how else to answer it

  19. jdoe0001
    • one year ago
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    if it were a right-triangle, it'd simple to just grab either side and use it as altitude but angle B is 87 degrees, not 90

  20. jdoe0001
    • one year ago
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    I myself, don't see how the law of sines alone would do it in this one I'd use the law of cosines to find "b", and use that in Heron's formula to get the area

  21. anonymous
    • one year ago
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    the test is titled LAW OF SINES

  22. anonymous
    • one year ago
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    then whats the law of cosines forumula

  23. jdoe0001
    • one year ago
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    doesn't matter, you need to cover that first but surely your book would have it

  24. anonymous
    • one year ago
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    im not in a book im taking an online test

  25. anonymous
    • one year ago
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    can you just help me

  26. anonymous
    • one year ago
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    thats why im here

  27. jdoe0001
    • one year ago
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    well,, surely it has studying material, so you see, the issue is, if the material hasn't been covered, there's no sense in giving the exercise I've heard some folks say that, online classes and such, I don't see how that exempts them from studying now, it may be that the site is giving you something that hasn't been covered but if you haven't covered something, there's no sense in giving you the exercise

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