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Ammarah Group Title

Use a sine or cosine ration to find the value of each variable. Round decimals to the nearest tenth.

  • one year ago
  • one year ago

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  1. Ammarah Group Title
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    |dw:1358233029373:dw|

    • one year ago
  2. mathstudent55 Group Title
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    In these triangle problems you have to look at the information you are given. First, look at the right angle. The side opposite that angle is the hypotenuse. In this case it's "n". Then look at the angle that is not the right angle that you either have an angle measure or is an unknown you are solving for. Here it's a 50-degree angle. For the 50-degree angle, side "m" is next to it. So side m is adjacent to that angle of 50 degrees. the leg that measures 8 is opposite to the 50-degree angle.

    • one year ago
  3. syhna Group Title
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    remembering this might help you out: SohCahToa

    • one year ago
  4. mathstudent55 Group Title
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    To solve for n, keep in mind n is the hypotenuse. For the angle of 50 degrees, the only known side is the leg the measure 8 which is opposite the 50-deg angle. So you have an angle, and opposite side and a hypotenuse. What connects the opposite side to the hypotenuse? It's the sine bec sin A = opp/hyp sin 50 = opp/hyp sin 50 = 8/n n = 8/sin 50 To solve for m, once again, look at the 50-deg angle. The side measuriong 50 is next to it, so it's an adjacent side. You need to connect the adjacent side to the hypotenuse which is n, so you use the cosine function: cos 50 = adj/hyp cos 50 = m/8 m = 8/cos 50

    • one year ago
  5. AravindG Group Title
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    @mathstudent55 nicely explained :)

    • one year ago
  6. Ammarah Group Title
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    is the answer n=10.5?

    • one year ago
  7. AravindG Group Title
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    i got 10.44

    • one year ago
  8. AravindG Group Title
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    n=10.44

    • one year ago
  9. AravindG Group Title
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    @Chickenisgood delete that u will get banned

    • one year ago
  10. Ammarah Group Title
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    but it says to round to the nearest tenth

    • one year ago
  11. AravindG Group Title
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    ok then it will be 10.4

    • one year ago
  12. Ammarah Group Title
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    when u find the cos and the sin how many decimal places do u use?

    • one year ago
  13. AravindG Group Title
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    depends on hw it should be reported i use 2 decimal places

    • one year ago
  14. Ammarah Group Title
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    but does it give u differnt answers? cuz in the book it uses four

    • one year ago
  15. AravindG Group Title
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    well 10.4 is the nearest value from 10.44

    • one year ago
  16. Ammarah Group Title
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    u mean from 10.5?

    • one year ago
  17. AravindG Group Title
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    from 10.44

    • one year ago
  18. Ammarah Group Title
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    so the answer is 10.4 right?

    • one year ago
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