Congruence of T...

By which congruency are the following pairs of triangles congruent:

In $$\Delta\,ABC$$ and $$\Delta PQR$$, $$AB=PQ$$, $$BC=QR$$ and $$AC=PR$$

Angles opposite to the equal sides of a triangle are equal. 

In a triangle $$ABC$$ and $$DEF$$, $$AB=FD$$ and $$\angle A=\angle D$$. The two triangles will be congruent by SAS axiom if:

If in two triangles $$ABC$$ and $$PQR$$, $$AB=\, QR$$, $$\angle A=\angle Q$$ and $$\angle B=\angle R$$, then $$\triangle ABC\cong$$ $$\triangle $$ 

If in two triangles $$ABC$$ and $$DEF$$, $$AB=\,DF$$, $$BC=\,DE$$ and $$\angle B=\angle D$$, then $$\triangle ABC\cong $$ $$\triangle $$____.

If the two sides and the ____ angle of one triangle are respectively equal to two sides and the included angle of the other triangle, then the triangles are congruent.

If ____sides of a triangle are respectively equal to the ____ sides of the other triangle, then the triangles are congruent.

Which of the following statements is true when $$\displaystyle \Delta ABC\cong \Delta DEF.$$

In $$\Delta ABC$$, AB = AC and AD is perpendicular to BC. State the property by which $$\Delta ADB\, \cong\, \Delta ADC$$.

In the following fig. if $$AB=AC$$ and $$BD= DC$$ then $${\angle ADC}$$ =