Step by step solution:
The clothes are hung on the middle so the angles opposite to angle x is equal....1)
As we know that the sum of all the angles is 180°
let us take angle y which is opposite to angle x
Therefore,
angle x + angle y + 158°= 180°
2 angle x + 158°=180°(by 1)
2 angle x = 180°-158°
2 angle x = 22°
angle x = 22/2
angle x = 11°
Hope it helps you....