Question Analysis
This question involves the concepts of vertical angles and linear pairs.
Key Concept Explanation
Vertical angles: These are formed when two lines intersect. They are opposite each other and have equal measures.
Linear pair: A pair of adjacent angles that form a straight - line. The sum of angles in a linear pair is .
Step - by - Step Solution
1. Examine the position of angles and :
Angles and are neither opposite to each other (so they are not vertical angles) nor do they form a straight - line together (so they are not a linear pair).
Option Analysis
A.vertical angles: Incorrect because