Based only on the given information, it is guaranteed that WY XZ .

In the given figure in the two triangles ZWX and ZYX ,the sides given equal are
ZW=ZY,
WX=YX,
XZ=XZ.
The three sides of both triangles are equal ,so the triangles are congruent by SSS congruence.In congruent by C.P.C.T the three angles are equal.
So we can say <ZXW=<ZXY.
These are angles made on a straight line so <ZXW=<ZXY =90 degrees.
By definition of perpendicular lines WY ⊥ XZ.
Option A .True.
Answer:
True
Step-by-step explanation:
Given: In ΔWYZ, ZW≅ZY, WX≅YX and XZ≅XZ.
To prove: WY⊥XZ
Proof:
From ΔWXZ and ΔYXZ, we have
ZW≅ZY (Given)
WX≅YX (Given)
and XZ≅XZ (Common)
Thus, By SSS rule, ΔWXZ ≅ ΔYXZ.
therefore, by CPCTC, ∠ZXW=∠ZXY
Now, since, these angles are made on straight line, therefore ∠ZXW=∠ZXY=90°
Thus, WY⊥XZ is guaranteed true.
Hence proved.