Congruence of two triangles

Use the information marked to prove : (i) DeltaEAC cong DeltaDBC (ii) EC = DC Also state the Euclid's axiom used in proving the congruency of two triangles.

Side Angle Side (SAS) Congruence - Two triangles are congruent if two sides and the included angle of one are equal to the corresponding sides and the included angle of the other triangle.

Congruence of two rectangles

Congruence of two angles

State ASA criterion of congruence of triangles.

Side Side Side(SSS) Congruence: Two triangles are congruent if the three sides of one triangle are equal to the corresponding three sides of the other triangle.

Which of the following is the correct option for the congruency of the two triangles ABC and PQR as per the SAS congruency criterion ?

Angle-Side-Angle (ASA) Congruence-Two triangles are congruent if two angles and the included side of one triangle are equal to the corresponding two angles and the included side of the other triangle.

Which of the following is not a criterion for congruence of triangles ?

Which criteria of congruence of triangles is satisfied in the given figure .