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DustinMHayes

  • 2 years ago

Sine and Cosine Ratios?

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  1. DustinMHayes
    • 2 years ago
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    |dw:1351201608050:dw|

  2. aroub
    • 2 years ago
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    sine= opposite/hypotenuse cosine= adjacent/hypotenuse

  3. mark_o.
    • 2 years ago
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    sin B =2/5 now find angle B first theN you will get cos B

  4. mark_o.
    • 2 years ago
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    angle B= sin^-1(2/5)=23.578 degrees now cos B=BC/5 therefore BC=5 cos B BC=5 cos23.578 BC=4.58 ans

  5. DustinMHayes
    • 2 years ago
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    So what is that to the nearest degree?

  6. mark_o.
    • 2 years ago
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    B=23.6 degree

  7. mark_o.
    • 2 years ago
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    that is angle B, forget BC i thought you are trying to get it too ...lol

  8. DustinMHayes
    • 2 years ago
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    Yea I have a table of trigonometric ratios to get the nearest degree but I dont know how to read it.

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