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marcoduuuh

  • 3 years ago

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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  1. marcoduuuh
    • 3 years ago
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  2. chloe123
    • 3 years ago
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    18^2-12^2=x^2... i dont have a calculator :P

  3. Brittni0605
    • 3 years ago
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    \[a^{2}+b^{2}=c^{2}\] \[12^{2}+b^{2}=18^{2}\] \[144+b^{2}=324\] \[b^{2}=324-188\] \[b^{2}=180\] \[\sqrt{b}=\sqrt{180}\] \[b=6\sqrt{5}\]

  4. Brittni0605
    • 3 years ago
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    Oops, correction: \[b^{2}=324-144\]

  5. Brittni0605
    • 3 years ago
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    Everything else is correct.

  6. Brittni0605
    • 3 years ago
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    SO, \[6\sqrt{5}=\sqrt{180}\]

  7. marcoduuuh
    • 3 years ago
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    Thank you sooooo much! :D

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