9.) Yes; the triangles are congruent by the Side-Side-Side Congruence Theorem.
What is Side-Side-Side Congruence Theorem?
Side-Side-Side Congruence Theorem can be defined as the theorem which states that if all the three sides of one triangle are equivalent to the corresponding three sides of the second triangle, then the two triangles are said to be congruent.
Since it is given that;
∆PXW ≈ ∆ PZW
Then line WX should be congruent to line WZ by the Side-Side-Side Congruence Theorem.