Answer:
y= 40° , z = 90°
Step-by-step explanation:
Angle z is a right angle and is therefore 90°
Angles in a triangle add up to 180°
So we can work out y by making an equation:
[tex]180 = 90 +50 + y[/tex]
[tex]y= 180-50-90[/tex]
[tex]y=40[/tex]
Therefore y =40°
