Question

find the unknown lettered angle​

Answer 1

in triangle sum of all sides of triangle are 180

x+63+2y=180 (2y=90 beacuase perpendicular

x=180-63+90 bisects it.)

x=57.

in next the line is linear pair 180* bisects it.

x+90+63=180

x=180-123

x=57.

you have wrote x and x two time and y as one time please correct the diagram.