Question

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Answer 1

Respuesta:

Es la B) , es 5

•AB + BC = AC

29 + BC = 90

BC = 61

•BC + CD = 90

$61 + {x}^{2} + 4 = 90$

${x}^{2} = 90 - 65$

${x}^{2} = 25$

$x = 5$