Geometry

Question Analysis

The focus is applying the Triangle Angle Bisector Theorem. Since bisects in , we use the theorem's side - length proportion to find .

 

Key Concept Explanation

The Triangle Angle Bisector Theorem: If a ray bisects an angle of a triangle, it divides the opposite side into segments proportional to the other two sides. In , we have .

 

Step - by - Step Solution

1. Identify values: , , , .

2. Set up proportion:

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