Question

how to do this ? plse help me

Answer 1

y=77° and X=50° because AB parallel to CD

Answer 2

Extend PR Upwards until a point and name it some X, Now by properties of Parallel lines, 

Angle XPB = 127°,
Now Angle XPA = 180°-127° = 53°,

Now We also know that RX is a line, and angle on RX must be 180°,
=> 53°+50°+y = 180° ,
=> y = 77°,

By properties of triangle, We also know that, Angle PRD = y +x,
=> 127° = 77° + x,
=> x = 50°,

So therefore x = 50°, and y = 77°,

Hope yo understand, Have a great day !