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anonymous

  • 5 years ago

How long is the diagonal of a 12 mm-by-16 mm face of a rectangular prism?

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  1. anonymous
    • 5 years ago
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    use Pythagoras' theorem

  2. amistre64
    • 5 years ago
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    dhat beat me to it :)

  3. anonymous
    • 5 years ago
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    Ahaha :D

  4. anonymous
    • 5 years ago
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    So does that mean it would be 800?

  5. anonymous
    • 5 years ago
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    :D um, no

  6. amistre64
    • 5 years ago
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    sqrt(12^2 + 16^2)

  7. anonymous
    • 5 years ago
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    But 12 to the second power is 144

  8. anonymous
    • 5 years ago
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    you forgot to take the sqrt.

  9. anonymous
    • 5 years ago
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    And when add to 16 to the second power i get 256

  10. amistre64
    • 5 years ago
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    144 256 ---- 400 sqrt(400) = 20

  11. anonymous
    • 5 years ago
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    Then I add it and get 400

  12. anonymous
    • 5 years ago
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    And I square root it to get 800?

  13. amistre64
    • 5 years ago
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    800*800 = 400???

  14. anonymous
    • 5 years ago
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    no no.. sorry. it is the sqrt of 400

  15. anonymous
    • 5 years ago
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    type in sqrt(400) in google and press enter

  16. anonymous
    • 5 years ago
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    Oh my bad! I multiplied it again by 400. I was thinking of exponents aha but thank you

  17. anonymous
    • 5 years ago
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    you are welcome.

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