Respuesta :

Answer:

              XN = 6

Step-by-step explanation:

If XY is bisector of angle AXN then:   [tex]\dfrac{YN}{AY}=\dfrac{XN}{AX}[/tex]

[tex]\dfrac4{12}=\dfrac{XN}{18}\\\\XN=\dfrac4{12}\cdot18\\\\XN=6[/tex]                                                            

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