<h2>
Answer with explanation:</h2>
According to the given question we have ,
Given : X is the midpoint of WY, 
To prove : 
Proof : Statement Reasons.
1. X is the midpoint of WY 1. <u><em>Given</em></u>
2. WX= XY 2.<em> </em><u><em>Midpoint divides line segment into equal halves</em></u><em>. </em>
3.
3. <u><em>Given</em></u>
4. WX= XZ 4. <u><em>Congruent segments are equal</em></u><em>.</em>
5. XY = XZ 5. <u><em>Transitive property of equality .(using (2) and (4))</em></u>
6.
6.<u><em> Equal line segments are congruent.</em></u>
<u><em /></u>
Important points :
- Transitive property equality says that if a= b and b=c then a=c , where a, b and c be any real number.
- Midpoint of an line segment into equal halves.
- Congruent line segments are equal in lengths.
- Equal line segments are congruent.