Respuesta :

Answer:

90° +105°+125°+ angle PSR =360°[ Sum of quadrilateral is 360°]

or,angle PSR =360°- 320°

or,angle PSR=40°

Now, angle PSR + x = 180°[Straight line]

or,40° +x = 180°

or,x=180° - 40°

Therefore, the value of x is 140°