anonymous
  • anonymous
What is the length of side c to the nearest tenth of a foot?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
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steve816
  • steve816
Use the Pythagorean theorem \[a^2+b^2=c^2\]
steve816
  • steve816
\[400^2+900^2=c^2\] 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

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steve816
  • steve816
Hope this helps buddy!
anonymous
  • anonymous
@steve816 Thank you! Now what if I had to find angle a with the same information?
steve816
  • steve816
Then you would use a little bit of trigonometry!
anonymous
  • anonymous
@steve816 Is angle a what is known as theta if I'm not mistaken?

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