For Exercises 1 to 4,
If
a)

b)

Exercises
a)
To find:
The value of
Given:
The given figure is,
Definition:
The angles that are formed on opposite sides of the transversal and inside the two lines are alternate interior angles. If the lines are parallel, then the alternate interior angles are equal.
Calculation:
Consider the given figure,
Figure (1)
From the figure (1),
b)
To find:
The value of
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