Q. Use the Segment Addition rule (part+part+part=total) to find the measure of x:x=15
Understand Segment Addition Rule: Step 1: Understand the Segment Addition Rule.The Segment Addition Rule states that the total length of a segment is the sum of its parts. Here, x is given directly as 15, so no addition is needed.
Apply Segment Addition Rule: Step 2: Apply the Segment Addition Rule.Since x is directly given and there are no other segments to add, x=15.