Congruence of T...

If $$\Delta ABC$$ and $$\Delta XYZ$$ are equilateral triangles and $$AB = XY,$$ the condition under which $$\Delta ABC \cong\Delta XYZ$$ is 

If $$\Delta PQR$$ in congruent to $$\Delta STU$$, then what is the length of $$TU$$?

By which congruency criterion, the two triangles in Fig. are congruent?

If $$\Delta ABC$$ and $$\Delta DBC$$ are on the same base $$BC, AB = DC$$  and $$AC = DB$$, then which of the following gives a congruence relationship?

If $$AB=QR,BC=PR$$ and $$CA=PQ$$ then

In triangles $$ABC$$ and $$DEF$$, $$AB=FD$$ and $$\angle A=\angle D$$. Two triangles are congruent by SAS criterion if

In two triangles $$ABC$$ and $$DEF$$, if $$AC = DF, BC = EF$$ and $$\angle ABC = \angle DEF = 90^{0}$$ then two triangles are said to be congruent by:

If $$AB = QR; BC = PR$$ and $$CA = PQ$$, then

In fig 3, if AB $$=$$ AC and AP $$=$$ AQ, then by which congruence criterion $$\Delta PBC \cong  \Delta QCB$$

If $$\Delta ABC\cong \Delta DEF$$ write the part of $$\Delta ABC$$ that correspond to