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27 February, 10:11

Pythagorean theorem 12^2 + b^2=27^2

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  1. 27 February, 12:29
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    Solve for b over the real numbers:

    b^2 + 12^2 = 27^2

    b^2 + 12^2 = b^2 + 144 and 27^2 = 729:

    b^2 + 144 = 729

    Subtract 144 from both sides:

    b^2 = 585

    Take the square root of both sides:

    Answer: b = 3 sqrt (65) or b = - 3 sqrt (65)
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