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Elak

  • one year ago

The ratio of the legs of a right triangle is 5 to 12. If the hypotenuse is 39, what is the area?

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  1. ash2326
    • one year ago
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    @Elak Do you know Pythagoras?

  2. Elak
    • one year ago
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    yes

  3. ash2326
    • one year ago
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    Let's assume one leg as x then other will be 12x/5 Do you agree?

  4. Elak
    • one year ago
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    :)) ok

  5. Elak
    • one year ago
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    but why?

  6. ash2326
    • one year ago
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    Let the other be y \[\frac x y= \frac 5 {12}\] Find y from this

  7. Elak
    • one year ago
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    ok Y=5/12x :)

  8. ash2326
    • one year ago
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    Now use the pythagoras to find x, Can you do that?

  9. Elak
    • one year ago
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    ok sorry , 12x=5y y=12x/5 :)

  10. ash2326
    • one year ago
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    oops :( I had missed that

  11. ash2326
    • one year ago
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    Could you find x?

  12. Elak
    • one year ago
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    x^2+ (12x/5)^2= 39 isit right??? :((

  13. ash2326
    • one year ago
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    39^2

  14. ash2326
    • one year ago
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    @Elak Did you find x? it's easy

  15. Elak
    • one year ago
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    x=15 ???

  16. ash2326
    • one year ago
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    Yes, I think you can find the area now?

  17. Elak
    • one year ago
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    yes, yhank you very muuuch :)))

  18. ash2326
    • one year ago
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    you did everything :)

  19. Elak
    • one year ago
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    but you help me, to think right ;)

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