marcoduuuh
What is the length of EF in the right triangle below?
A. 468
B. 180
C. 30
D. √468
E. √180
F. 6
(Picture below.)



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marcoduuuh
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chloe123
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18^212^2=x^2... i dont have a calculator :P

Brittni0605
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\[a^{2}+b^{2}=c^{2}\]
\[12^{2}+b^{2}=18^{2}\]
\[144+b^{2}=324\]
\[b^{2}=324188\]
\[b^{2}=180\]
\[\sqrt{b}=\sqrt{180}\]
\[b=6\sqrt{5}\]

Brittni0605
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Oops, correction: \[b^{2}=324144\]

Brittni0605
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Everything else is correct.

Brittni0605
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SO, \[6\sqrt{5}=\sqrt{180}\]

marcoduuuh
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Thank you sooooo much! :D