Question

In the given figure, AB ||CD. The line segments BC and AD intersect at O.
Show that:
z= x+y.​

Answer 1

Step-by-step explanation:

Given:-AB||CD

To Prove:-X+Y=Z

proof:- Since AB||CD

Y=DCO --------(1)

Since exterior angle is equal to sum of two opposite interior angles thus

Z=X+DCO

Z=X+Y