Answer: 55°
Step-by-step explanation: y and x are supplementary and equal 180°. Triangles also equal 180° so subtract the two angles you know and x is 125°. 180 - 125 = 55°
Answer:
y = 55°
Sum of the interior angles of a triangle = 180°
Therefore, x + 25°+30° = 180°
or, x + 55° = 180°
or, x = 180°-55°
or, x = 125°
Now, x + y = 180° ( straight angles)
125°+y = 180°
y= 55°
