HELLO
This is neha to help you with
The given figure is a quadrilateral
We know that the sum of angles of a quadrilateral is 360°
let the missing angle inside the quadrilateral be Y
40°+80°+110°+y= 360
230°+y=360°
y=360°-230°
y=130°
now we have to find the value of x
x+ y= 180° (reason:- angles on a straight line add ups to 180°)
substitute the value of y
x+130°=180°
y= 180°-130°
y= 50°
