Respuesta :

wizard123
Use the pythagorean theorem:
[tex]a^2 +b^2 = c^2[/tex]

where c is the hypotenuse of the triangle.

[tex]x^2 +12^2 = 14^2 \\ \\ x^2 +144 = 196 \\ \\ x^2 = 52 \\ \\ x = \sqrt{52} = 2 \sqrt{13}[/tex]

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