Respuesta :


[tex]a {}^{2} + b {}^{2} = c {}^{2} \\ a {}^{2} = c {}^{2} - b {}^{2} \\ a = \sqrt{c {}^{2} - b {}^{2} } \\ a = \sqrt{6 ^{2} - 4 {}^{2} } = 4.47[/tex]
and because x=2a
[tex]x = 2a \\ x = 2 \times 4.47 = 8.94[/tex]
check the picture below.
Ver imagen jdoe0001

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