Congruence of T...

Ankita wants to prove $\Delta ABC\cong \Delta DEF$ using $SAS$. She knows $AB=DE$ and $AC=DF$. What additional piece of information does she need?

By which congruency property, the two triangles connected by the following figure are congruent.

In the given fig. if AD = BC and AD || BC, then:

ABC is an isosceles triangle in which the altitudes $BE$ and $CF$ are drawn to the equal sides $AC$ and $AB$ respectively. Then

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

In the given figure, $\triangle RTQ\cong \triangle PSQ$ by ASA congruency condition. Which of the following pairs does not satisfy the condition?

It is given that $AB=BC$ and $AD=EC.$ The $\triangle ABE\cong \triangle  CBD$ by __________ congruency.

In the given figure, $OA=OB, OC=OD, \angle AOB=\angle COD.$ Which of the following statements is true$\: ?$

In the figure, $\displaystyle \Delta ABC\cong \Delta ADC$ by the congruence postulate

For a $\displaystyle \Delta XYZ, ZY = 12\ m, YX = 8\ m$ and $XZ = 10\ m$. If $\displaystyle \Delta ZYX\cong \Delta ABC$, then $AC =$ _____ $m$.