Question

in the given figure ABCD is a parallelogram. Find the value of x, y, and z.​

Answer 1

Step-by-step explanation:

AD∥BC,BD is the transversal line 

⟹∠ADB=∠DBC     (∵alternate angles)

⟹z=30∘

Also

100∘,x are supplementary angles 

So x=180∘−100∘=80∘

x,y,30∘ forms a triangle 

⟹x+y+30∘=180∘

⟹y=180∘−80∘−30∘=70∘