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dedderick Group Title

In the triangle, x = 3. Find y.

  • one year ago
  • one year ago

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  1. dedderick Group Title
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    • one year ago
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  2. mathsmind Group Title
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    have you studied Pythagoras theorem

    • one year ago
  3. mathsmind Group Title
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    ?

    • one year ago
  4. dedderick Group Title
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    no not yet

    • one year ago
  5. mathsmind Group Title
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    ok you want to solve this using sin and cos

    • one year ago
  6. mathsmind Group Title
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    you should have done it right?

    • one year ago
  7. itsmeeQUENNIE Group Title
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    @dedderick the formula for pythagoran theorem is |dw:1360070556954:dw|

    • one year ago
  8. mathsmind Group Title
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    you can use the sin rule or the cos rule

    • one year ago
  9. dedderick Group Title
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    ok

    • one year ago
  10. dedderick Group Title
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    how which side to square

    • one year ago
  11. dedderick Group Title
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    i meant what side do we square

    • one year ago
  12. mathsmind Group Title
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    i will give you the answer and then prove it for you

    • one year ago
  13. dedderick Group Title
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    then i can understand it better

    • one year ago
  14. mathsmind Group Title
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    if x =3 in your case then y=\[3\sqrt{2}\]

    • one year ago
  15. mathsmind Group Title
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    now you should know that \[\sin 45 = \cos 45=\frac{ 1 }{ \sqrt{2} }\]

    • one year ago
  16. dedderick Group Title
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    right

    • one year ago
  17. Nataliecowell Group Title
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    In any right triangle, you can use the Pythagorean Therom to solve for sides. In that triangle, x is 2 of the sides and equals 3. Pyhtagreons Therom is a^2+b^2=c^2 A and b are the x's in the diagram. So 3^2 + 3^2 is equal to 18= c^2 Then find the square root of 18 to solve.

    • one year ago
  18. mathsmind Group Title
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    do you agree with that rule

    • one year ago
  19. dedderick Group Title
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    yes i understand now

    • one year ago
  20. mathsmind Group Title
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    the guy says he hasn't done Pythagoras theorem

    • one year ago
  21. mathsmind Group Title
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    so we had to go to a different ulternative

    • one year ago
  22. dedderick Group Title
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    ok

    • one year ago
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