Answer:
<XWZ=52°
Step-by-step explanation:
By alternate angle property, < XZY=<WXZ=64°
The base angles of an isosceles triangle are also equal therefore
<WXZ=<WZX=64°
The sum of angles in a triangle is 180°
< XWZ+<WXZ+<WZX=180°
<XWZ+64+64=180°
<XWZ=180°-64-64
This simplifies to
<XWZ=52°