Given: 

Find: 

To find:
Given:
Theorem used:
Angle bisector theorem:
If a ray bisects one angle of a triangle, then it divides the opposite side into segments whose lengths are proportional to the lengths of the two sides that form the bisected angle.
Calculation:
Given:
Then by anglebisector theorem, the ray
We know that if
From the figure, we see that,
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