Write twocolumn proofs for Review Exercises 39 to 46.
Given:  Figure as shown 
Prove: 

To find:
The twocolumn proof for
Given:
The given diagram is,
Figure
The adjacent angles
Definition:
If the sum of two angles is
Approach:
The reasons for given statements is explained in table below.
Statements  Reasons 
1. The adjacent angles 
1. Given 
2. 
2 
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