Respuesta :

PKE is a triangle and its interior angles therefor sum to 180deg:

[tex]P+K+E=180[/tex]
[tex]90+(x+6)+2x=180[/tex]
[tex]96+3x=180[/tex]
[tex]3x=84[/tex]
[tex]x=\frac{84}{3}=28deg[/tex]

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