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30 POINTS!!
in the figure below, angle y and angle x form vertical angles. Angle x forms a straight line with the 50° angle and the 40° angle.

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Respuesta :

gmoneyy
Since x forms a straight line with 2 angles, we know that a straight line is 180 degrees.  From there we add 40+50+x=180.  
Solving for x gives us 90.  Since x and y are vertical angles, we know that y also equals 90.

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