Respuesta :

Answer:

No

Step-by-step explanation:

[tex]a^{2} +b^{2}=c^{2}[/tex]- Pythagorean Theorem

Let's substitute:

[tex]12^{2} +12^{2}=18^{2}[/tex]

144+144=324

Does the above work?

No, so the triangle's sides do not form a right triangle

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