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katlin95

  • 3 years ago

Find the length of side GF A. 31.95 B. 25.3 C. 73.8 D.56.5 Give me a sec gota draw it:)

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  1. katlin95
    • 3 years ago
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    |dw:1363993414259:dw|

  2. yoyointegrals
    • 3 years ago
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    im gonna guess A ;P

  3. yoyointegrals
    • 3 years ago
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    is this a right triangle?

  4. katlin95
    • 3 years ago
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    yep

  5. yoyointegrals
    • 3 years ago
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    ok, so a^2 + b^2 = c^2

  6. yoyointegrals
    • 3 years ago
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    where a is what we want (or b, doesn't matter)

  7. yoyointegrals
    • 3 years ago
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    c = 71^2

  8. yoyointegrals
    • 3 years ago
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    a (or b) = 43^2

  9. yoyointegrals
    • 3 years ago
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    and solve for the remaining variable (remember to square root it)

  10. katlin95
    • 3 years ago
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    my answer I got was C, would that be correct guys?

  11. yoyointegrals
    • 3 years ago
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    nope. lemme write the equation.

  12. yoyointegrals
    • 3 years ago
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    \[\sqrt{(71^2 - 43^2)}\]

  13. yoyointegrals
    • 3 years ago
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    = a

  14. katlin95
    • 3 years ago
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    okay I got 2 sqrt 798 so my answer would be A?

  15. yoyointegrals
    • 3 years ago
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    i don't see how you got 798. are you squaring the 71 and 43?

  16. katlin95
    • 3 years ago
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    I used subtraction

  17. yoyointegrals
    • 3 years ago
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    you have to square the numbers then subtract, then square root. start by doing 71 ^2, what is that

  18. robtobey
    • 3 years ago
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    \[2 \sqrt{798}=56.4978 \]

  19. yoyointegrals
    • 3 years ago
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    or that, that works^

  20. katlin95
    • 3 years ago
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    Alright so my answer would then be D:)! Right?

  21. yoyointegrals
    • 3 years ago
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    yes ma'am

  22. katlin95
    • 3 years ago
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    Thanks for helping me!:)

  23. yoyointegrals
    • 3 years ago
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    sorry if i confused you

  24. katlin95
    • 3 years ago
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    its alright:)

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