Question Analysis
The main focus is applying the Side - splitter theorem corollary. Since , we can set up a proportion using the segments of the sides of to find the value of . We know , , and , and we need to use these values in the proportion involving .
Key Concept Explanation
The Side - splitter theorem corollary states that if a line is parallel to one side of a triangle and intersects the other two sides, it divides those sides proportionally. In , we have .
Step - by - Step Solution
1. First, find :