Geometry

Question Analysis

This question combines the concept of an angle bisector in geometry with algebraic equation - solving.

 

Key Concept Explanation

An angle bisector is a ray that splits an angle into two congruent angles. So, if  bisects , then .

 

Step - by - Step Solution

1. Set up the equation based on the angle - bisector property:

Given that  and , we can write the equation

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