[tex]\boxed{\boxed{\bf{\red{Olá }}}}[/tex]
Teorema de Pitágoras
Vamos aos cálculos
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[tex]a {}^{2} = b {}^{2} + c {}^{2} [/tex]
X= a
12= b
5= c
[tex]x {}^{2} = 12 {}^{2} + 5 {}^{2} \\ x {}^{2} = 144 + 25 \\ x {}^{2} = 169 \\ x = \sqrt{169} \\ \boxed{x = 13}[/tex]
Resposta: ☞︎︎︎ e) 13
