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cutiecomittee123

  • one year ago

FInd sin55 using ratios of sides of the given triangle. Check using calculator

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  1. freckles
    • one year ago
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    sin(55) is opposite/hyp

  2. freckles
    • one year ago
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    well opposite side of that angle with measure 55 deg/hyp of the triangle

  3. cutiecomittee123
    • one year ago
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    |dw:1441827397217:dw|

  4. cutiecomittee123
    • one year ago
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    I solved for both a and b and got a= 20.48 b= 14.34

  5. freckles
    • one year ago
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    ok and I guess you rounded to the nearest hundredth a is correct

  6. freckles
    • one year ago
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    checking b

  7. freckles
    • one year ago
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    that is also correct

  8. cutiecomittee123
    • one year ago
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    okay so to set up the problem it would be sin(55)=14.34/25 right?

  9. freckles
    • one year ago
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    didn't you already solve the problem?

  10. freckles
    • one year ago
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    also how could sin(55) be 14.34/25 when it was sin(55)=a/25 and you got a to be 20.48?

  11. cutiecomittee123
    • one year ago
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    I guess I am confused. Because I found a and b and then it is asking me to find sin55.. but i tested ratios of sides and everthing comes out false

  12. freckles
    • one year ago
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    well you solved sin(55)=a/25 for a correct?

  13. freckles
    • one year ago
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    and you got a to be 20.48?

  14. freckles
    • one year ago
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    so sin(55)=20.48/25

  15. cutiecomittee123
    • one year ago
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    oh gotcha! that makes way more sense so the ratio was just that

  16. freckles
    • one year ago
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    yes replace a with what it equals not what b equals :p

  17. freckles
    • one year ago
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    \[\sin(35)=\frac{b}{25} \\ \text{ so you could say } \sin(35)=\frac{14.34}{25}\]

  18. freckles
    • one year ago
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    just if they asked you to do sin(35)

  19. freckles
    • one year ago
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    notice I replaced b with 14.34 since that is what you found b to be

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