If two angles and the included side of one triangle are respectively equal to two angles and the included side of another triangle, then by which congruency rule the two triangles are congruent?

 If $\mathrm{AC}=\mathrm{BD}, \mathrm{AD}=\mathrm{BC},$ then which of the following statements is meaningfully written?

If three sides of a triangle are equal to the three sides of another triangle, then the two triangles are congruent by which congruence criteria?

Which angle is included between the sides $\mathrm{DE}$ and $\mathrm{EF}$ of $△\mathrm{DEF}$ ?

 By applying SAS congruence rule, you want to establish that $∆\mathrm{PQR}\cong ∆\mathrm{FED}$. It is given that $\mathrm{PQ}=\mathrm{FE}$ and $\mathrm{RP}=\mathrm{DF}$. What additional information is needed to establish the congruence?

 Which congruence criterion do you use in the following? Given : $\mathrm{AC}=\mathrm{DF}, \mathrm{AB}=\mathrm{DE}, \mathrm{BC}=\mathrm{EF}.$ So, $∆\mathrm{ABC}\cong ∆\mathrm{DEF}$.

 You want to establish $∆\mathrm{DEF}\cong ∆\mathrm{MNP}$, using the $\mathrm{ASA}$ congruence rule. You are given that $\angle \mathrm{D}=\angle \mathrm{M}$ and $\angle \mathrm{F}=\angle \mathrm{P}$. What information is needed to establish the congruence?

Which congruence criterion do you use in the following? Given : $\mathrm{EB}=\mathrm{BD}, \mathrm{AE}=\mathrm{CB}, \angle \mathrm{A}=\angle \mathrm{C}=90°$ So,

Which congruence criterion will you use in the following?