Answer:
y = 42°
Step-by-step explanation:
We have to find the value of y
In the given triangle with angle y
y° + 90° + 48° = 180° [ since total of all angles of a triangle is 180° ]
y + 138 = 180
y = 180 - 138
y = 42°
Therefore, the answer is y = 42°.
