Respuesta :

We will determine th set as follows:

a)

[tex]15\ne\sqrt[]{8^2+12^2}[/tex]

So, set a is not.

b)

[tex]7\ne\sqrt[]{4^2+5^2}[/tex]

c)

[tex]15=\sqrt[]{12^2+9^2}[/tex]

So, set c has the lengths of a rigth triangle.

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