Question

in the given figure find the values of x,yand z .

Answer 1

value of   y= 40 (opposite angle of given angle)
                x= 140 ( supplementary angle of  'y')
                z= 140 (opposite angle of 'x')

Answer 2

The value of y = 40° (∵ vertically opposite angles)
                     x = 180 - 40 = 40° (∵ supplementary angles)
                     z = 180 - 40 = 40° (∵ supplementary angles)