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Suleman_Ahmed

  • 2 years ago

Find the value of x on a right triangle when 2 variables are missing and the hypotenuse is 3 square root of 2

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  1. Suleman_Ahmed
    • 2 years ago
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    |dw:1359443877815:dw|for a better look at the problem

  2. ajprincess
    • 2 years ago
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    |dw:1359444180420:dw| Since BC=AC and <ACB =90 triangle ABC is an isosceles right angled triangle. So <ABC=<BAC=y y+y+90=180 2y+90=180 2y=180-90 2y=90 y=90/2 y=45

  3. ajprincess
    • 2 years ago
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    |dw:1359444336807:dw| sin45=opp/hyp 1/(sqrt2)=x/(3sqrt2) Can u find x nw? @Suleman_Ahmed

  4. Suleman_Ahmed
    • 2 years ago
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    I'm still confused can you do it step by step and the answer has to be radical form.

  5. ajprincess
    • 2 years ago
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    |dw:1359444635517:dw| Since BC=AC and <ACB =90 triangle ABC is an isosceles right angled triangle. So <ABC=<BAC=y y+y+90=180 2y+90=180 2y=180-90 2y=90 y=90/2 y=45 Do u get until this?

  6. Suleman_Ahmed
    • 2 years ago
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    yes

  7. ajprincess
    • 2 years ago
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    ok good:)

  8. ajprincess
    • 2 years ago
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    Are u familiar with trigonometirc identities like cos, sin, tan etc?

  9. Suleman_Ahmed
    • 2 years ago
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    Actually I'm not, sorry.

  10. ajprincess
    • 2 years ago
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    k. hw abt pythagoras' theorem?

  11. Suleman_Ahmed
    • 2 years ago
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    yes I know that.

  12. ajprincess
    • 2 years ago
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    hmm good.:) so use that to find x. Can u do?

  13. Suleman_Ahmed
    • 2 years ago
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    I'm very new to this so i don't think i can.

  14. ajprincess
    • 2 years ago
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    Can u plz tell me vat is pythagoras' theorem?

  15. Suleman_Ahmed
    • 2 years ago
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    a squared + b squared = c squared

  16. ajprincess
    • 2 years ago
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    Nw from ur diagram can u tell me vat is a, b and c?

  17. Suleman_Ahmed
    • 2 years ago
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    A=45 B=45 C=90

  18. ajprincess
    • 2 years ago
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    |dw:1359445451467:dw| In ur diagram a=x, b=x and c=3sqrt2 Following it?

  19. Suleman_Ahmed
    • 2 years ago
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    yes now I am

  20. ajprincess
    • 2 years ago
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    Nw can u find x using the puthagoras' theorem?

  21. Suleman_Ahmed
    • 2 years ago
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    a squared ?

  22. ajprincess
    • 2 years ago
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    x^2+x^2=(3sqrt2)^2

  23. Suleman_Ahmed
    • 2 years ago
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    okay i understand a little better

  24. ajprincess
    • 2 years ago
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    Can u find x nw? @Suleman_Ahmed

  25. Suleman_Ahmed
    • 2 years ago
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    nope

  26. ajprincess
    • 2 years ago
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    what is x^2+x^2=?

  27. Suleman_Ahmed
    • 2 years ago
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    3sqr root 2

  28. ajprincess
    • 2 years ago
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    x^2+x^2=2x^2 2x^2=(3sqrt2)^2 (3sqrt2)^2=3^2*(sqrt2)^2 =9*2 Hope that helps.

  29. Suleman_Ahmed
    • 2 years ago
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    okay thanks that did

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