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  1. DanJS
    • one year ago
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    The sin of an angle is the opposite side of the triangle divided by the hypotenuse. So, To figure the sin(L), you have to figure out the lengths of sides OM and OL

  2. annmeez
    • one year ago
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    is it a 1:1:2 ratio?

  3. DanJS
    • one year ago
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    both those triangles are right triangles, you can use the pythagorean theorem on triangle MNO first, to get the length of OM

  4. DanJS
    • one year ago
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    3^2 + 4^2 = (OM)^2

  5. annmeez
    • one year ago
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    would it equal 5?

  6. DanJS
    • one year ago
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    yes , 3-4-5 triangle

  7. annmeez
    • one year ago
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    okay i think i can do it now, thank you so much!!

  8. DanJS
    • one year ago
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    now do the same thing on the other triangle to get side OL

  9. DanJS
    • one year ago
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    12^2 + 5^ 2 = (OL)^2

  10. DanJS
    • one year ago
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    Then from definition, \[\sin(L) = \frac{ OM }{ OL }\]

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