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anonymous

  • one year ago

What is the length of side c to the nearest tenth of a foot?

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  1. anonymous
    • one year ago
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  2. steve816
    • one year ago
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    Use the Pythagorean theorem \[a^2+b^2=c^2\]

  3. steve816
    • one year ago
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    \[400^2+900^2=c^2\] To simplify things, we're going to divide by 100 to get this \[4^2+9^2=c^2\] \[16+81=c^2\] \[97=c^2\] \[c=\sqrt{97}\] \[c \approx 9.849\] Since we divided this by 100, we have to multiply by 100, so the answer would be \[984.9 \] feet

  4. steve816
    • one year ago
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    Hope this helps buddy!

  5. anonymous
    • one year ago
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    @steve816 Thank you! Now what if I had to find angle a with the same information?

  6. steve816
    • one year ago
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    Then you would use a little bit of trigonometry!

  7. anonymous
    • one year ago
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    @steve816 Is angle a what is known as theta if I'm not mistaken?

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