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warningiflirt

  • one year ago

please help, The picture shows a triangular island. Which expression shows the value of q? A. r cos 55° , B. r sin 55°, C. s/sin55°, D. s/cos55°

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  1. warningiflirt
    • one year ago
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  2. hartnn
    • one year ago
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    do you know the definitions of sin and cos ratios ?

  3. warningiflirt
    • one year ago
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    sin opposite/hypot. cos adj/hypot. ?

  4. hartnn
    • one year ago
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    correct! so, can u find sin 55 and cos 55 ?

  5. hartnn
    • one year ago
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    what is adjacent side of 55 degree angle what is hypotnuse and what will be cos 55 then ?

  6. warningiflirt
    • one year ago
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    adjacent is s, hypotnuse is q, so s/q

  7. hartnn
    • one year ago
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    good!! cos 55 = s/ q so, q =.... ?

  8. warningiflirt
    • one year ago
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    cos 55 times s?

  9. hartnn
    • one year ago
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    not actually, first multiply 'q' on both sides, what u get ?

  10. warningiflirt
    • one year ago
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    s divided by cos 55 ?

  11. hartnn
    • one year ago
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    correct! :)

  12. warningiflirt
    • one year ago
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    yay thank you!

  13. hartnn
    • one year ago
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    welcome ^_^

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