Question Analysis
This question involves the Side - Splitter Theorem. The main focus is to use the proportionality relationship created by the parallel line in to find the length of .
Key Concept Explanation
The Side - Splitter Theorem states that if a line is parallel to one side of a triangle and intersects the other two sides, then it divides those sides proportionally. In , since , we have , and also .
Step - by - Step Solution
1. First, find the length of :
Given and , then