Given: 

Prove: 

To prove:
The side
Given:
The given figure is,
Figure
From figure
Approach:
An angle bisector divides the angle in two congruent angles.
Opposite side of larger angle has the larger length in a triangle.
Approach:
Consider the triangle
From the given data,
The angle bisector
Consider the triangle
Since, the measure of the exterior angle
Then, the exterior angle
Since, the angle
Since, the side opposite to larger angle in a triangle has the larger length
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