\"\"

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The lengths of two sides of a right triangle are \"\".

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To find: side c.

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Apply Pythagorean theorem: \"a

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\"\"              (Substitute 48 for a and 189 for b)

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

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\"\"                     (Add: \"\")

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

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\"\"                 (Write \"\")

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\"\"                           (Cancel sqaure and root)\"\"

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The length of the third side \"\".