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anonymous

  • 4 years ago

In a right triangle, the length of the hypotenuse is 20 inches and the length of one leg is 15 inches. What is the length of the other leg? A. 5 inches B. 5√7 inches C. √7 inches D. 25 inches

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  1. anonymous
    • 4 years ago
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    |dw:1328069679628:dw| Pythagorean theorem is \[a^2+b^2=c^2\]

  2. anonymous
    • 4 years ago
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    \[C ^{2}=A ^{2}+B ^{2}\] C is the hypotenuse

  3. anonymous
    • 4 years ago
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    C=a+b (squared). 20 = 15 + ? 400 = 225 + ? 175 = b Time to square root. 25Z7 = answer :D

  4. anonymous
    • 4 years ago
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    the sqrt of 175 is not 25... if you reduce it, it is 5sqrt7 B

  5. anonymous
    • 4 years ago
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    thanks

  6. anonymous
    • 4 years ago
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    It is indeed, my dear friend. The radical only signifies the simplification of Z25Z7, bringing the answer to 5Z7.

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