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anonymous

  • 5 years ago

A ladder is resting against a wall. The top of the ladder touches the wall at a height of 12 ft. Find the length of the ladder if the length is four ft more than the distance from the wall.

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  1. amistre64
    • 5 years ago
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    pythag it

  2. amistre64
    • 5 years ago
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    144+16 = 160 sqrt(160)

  3. amistre64
    • 5 years ago
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    gotta read the entire q i spose lol

  4. amistre64
    • 5 years ago
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    12^2 + (l+4)^2 = l^2

  5. amistre64
    • 5 years ago
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    got those backwards....

  6. amistre64
    • 5 years ago
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    144 + l^2 = l^2 +16 +8l

  7. amistre64
    • 5 years ago
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    128 -8l = 0 8(16 -l) l = 16; so ladder = 20?

  8. amistre64
    • 5 years ago
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    12^2 +16^2 = 20^2 maybe?

  9. anonymous
    • 5 years ago
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    20 ft looks right to me

  10. anonymous
    • 5 years ago
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    thanks.

  11. amistre64
    • 5 years ago
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    144 256 ---- 400 yep

  12. anonymous
    • 5 years ago
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    medal

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