Assessment

It is usually used at the end of a proof to show that two segments or two angles of triangles are congruent.

• a. The corresponding parts of congruent triangles are unequal.

• b. The corresponding sides or angles of two triangles are parallel.

• c. The corresponding parts of congruent triangles are congruent.

• d. The corresponding sides or angles of two triangles are perpendicular.

If Δ ABC ≅ Δ DEF, which of the following statements is NOT correct?

• a. ∠A is congruent to ∠D.

• b. AB is congruent to DE.

• c. ∠C is congruent to ∠F.

• d. BC is congruent to DE.

James proves that Δ LIM is congruent to Δ BOY, this means that ____.

• a. All the corresponding parts of the two triangles are congruent.

• b. At least one corresponding part of the two triangles is congruent.

• c. Only the corresponding angles of the two triangles are congruent.

• d. Only the corresponding sides of the two triangles are congruent.

ΔPOG ≅ ΔSOR, what is the side corresponding to PO?

• a.OS

• b. RO

• c. RS

• d. SO

Listed below are the six pairs of corresponding parts of congruent triangles. Name the congruent triangles.

SA ≅ JO AD ≅ OY SD ≅ JY

∠D ≅ ∠Y ∠A ≅ ∠O ∠S ≅ ∠J

• a. ΔASD ≅ ΔJOY

• b. ΔSAD ≅ ΔJOY

• c. ΔADS ≅ ΔYJO

• d. ΔSAD ≅ ΔJYO

In ΔDOS, what side is included between ∠D and ∠O?

• a. DO

• b. DS

• c. SD

• d. SO

Name the corresponding congruent parts as marked that will make pair of triangles congruent by SAS.

• a. BY ≅ NR, ∠BOY ≅ ∠NOR, BO ≅ NO

• b. BO ≅ NO, ∠BOY ≅ ∠RON, YO ≅ RO

• c. YO ≅ OR, ∠BOY ≅ ∠NOR, BO ≅ ON

• d. BO ≅ NO, ∠YBO ≅ ∠RNO, OY ≅ OR

If the corresponding parts of two triangles are marked as follow, how can you prove ΔBEC ≅ ΔBAC?

• a. ASA

• b. LL

• c. SAS

• d. SSS

What property of congruence is illustrated in the statement? If AB ≅ DE and EF ≅ DE, then AB ≅ EF.

• a. Symmetric

• b. Transitive

• c. Reflexive

• d. Multiplication

ΔGIV ≅ ΔSAV, deduce a statement about point V.

• a. V is collinear with A and S.

• b. V is in the exterior of ΔSAV.

• c. V is the midpoint of GS.

• d. V is collinear with G and I.