Use the Pythagorean theorem to find

Answer:
13cm
Step-by-step explanation:
the formula for finding the hypotenuse is:
[tex]c=\sqrt{a^{2} +b^{2} }[/tex]
C is always the longest side of the triangle. In your question, it would be the side without any measurement.
It doesn't matter which side is A and which side is B, so, suppose that A is 12 and B is 5.
Now just solve for C
C=[tex]\sqrt{12^{2} + 5^{2} }[/tex]
C=[tex]\sqrt{144+25}[/tex]
C=13
Therefore, the missing side is 13 cm
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