Answer:
Vertically opposite angles are 
Linear pair of angles are 
, 
Step-by-step explanation:
Given: image
To find: vertical angles, the angles that form linear pairs, value of x, y and z
Solution:
If two lines intersect each other then the vertically angles formed are equal.
Two adjacent angles are said to be linear if their sum is
.
From the given image,
vertically opposite angles are 
Linear pair of angles are 
As vertically opposite angles are equal, 
As sum of angles that form a linear pair is
,

Also, as x and z are vertically opposite angles,
