Given: 

Transversal








Find: 

Exercise
To find:
The values of
If there exists two parallel lines cut by a transversal then the pair of exterior angles on the same side of transversal is supplementary.
The sum of angles that falls on the straight line is
Given:
The given figure is,
The given angle is
Calculation:
Consider the given figure,
From the figure,
From the figure (1),
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