\"\"

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The lengths of a right triangle are \"\" ; \"\"

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Apply Pythagorean theorem: \"a

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\"\"                        (Substitute 48 for a and 73 for c)

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\"\"                  (Evaluate powers: \"\")\"\"

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\"\" (Subtract 2304 from each side)

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\"\"                               (Subtract: \"\")

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\"\"                        (Take square root to each side)

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\"\"                           (Write \"\")

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\"\"                                     (Cancel square and root)\"\"

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The length of the third side \"\".