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Urgent. I did the problem but it said it was wrong. Could anyone help me solve this correctly?

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Two sides of a right triangle have the lengths 4 and 5. What is the product of the possible lengths of the third side? Express the product as a decimal rounded to the nearest tenth.

Guest Nov 14, 2017
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The possible lengths are 3 and $$\sqrt{31}$$ .

Reason: 32 + 42 = 52 & 42 + 52 = 31.

helperid1839321  Nov 14, 2017

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