Answer:
angle y= 90
angle z= 45
angle x= 45
Step-by-step explanation:
Atriangle has 180 degrees. The y angle is 90 degrees because whenever a shape has the square thing it means it is 90 degrees. so 180-90 = 90. Since both of the other angles are the same 90/2 = 45. so angle y= 90 degrees and angle z= 45 degrees and angle x=45 degrees
