These two triangles are congruent. If , then  the measure of  is

The triangle sum theorem states that the sum of the angles of a triangle equal how many degrees?

 is called _________.

Do we have enough information to say these two triangles are congruent? If so, what allows us to say this?

Can the HL congruence theorem be used to prove the triangles congruent? If so, write a congruence statement.

Can the HL congruence theorem be used to prove the triangles congruent? If so, write a congruence statement.

State if the two triangles are congruent. If they are, state how you know.

If ∆ ABC and ∆ PQR are to be congruent, then name one additional pair of corresponding parts.

Complete the congruence statement: ∆ BCA =

Congruent triangles are triangles that have same size and shape. This suggests us that the corresponding sides are equal and corresponding angles are equal.
When two triangles are congruent, all of their corresponding sides and angles are equal.

We want to show that . We have to use SAS criterion. We have , RT = EN, then____________.

SAS congruence is the term which is also known as Side Angle Side congruence. In this, triangles are congruent if any pair of corresponding sides and their included angles are equal in both triangles. 
 

For two given triangles, ΔABC and ΔPQR, the number of possible matchings are

If ∆ ABC ≅ ∆ PQR, then the value of ∠A will be, 

∆ PQR is congruent to ∆ STU (in figure), then length of TU is ___________.

Congruent triangles are triangles that have same size and shape. This suggests us that the corresponding sides are equal and corresponding angles are equal.
When two triangles are congruent, all of their corresponding sides and angles are equal.

If, for ∆ ABC and ∆ DEF, the correspondence CAB and EDF gives a congruence, then false statement is 

If ∆ ABC and ∆ DBC are on the same base BC, AB = DC and AC= DB, then __________gives a congruence relationship.