Congruent Triangles

What is a congruency statement?

• A congruency statement is a statement that compares two geometric figures and states that they are parallel.

• A congruency statement is a statement that compares two geometric figures and states that they are similar.

• A congruency statement is a statement that compares two geometric figures and states that they are perpendicular.

• A congruency statement is a statement that compares two geometric figures and states that they are congruent.

What are the three subtopics related to congruent triangles?

• Congruence proofs

• Triangle inequalities

• Congruence criteria, Congruence postulates, Congruence theorems

• Similarity criteria

What does CPCTC stand for?

• Congruent Parts of Corresponding Triangles are Congruent

• Corresponding Parts of Congruent Circles are Congruent

• Congruent Parts of Corresponding Circles are Congruent

• Corresponding Parts of Congruent Triangles are Congruent

If two triangles are congruent, what can you say about their corresponding parts?

• Some corresponding parts are equal.

• The corresponding parts have the same shape.

• All corresponding parts are equal.

• The corresponding parts have the same size.

If triangle ABC is congruent to triangle DEF, what is the congruency statement?

• ABC ≈ DEF

• ABC ≅ DEF

• ABC ~ DEF

• ABC = DEF

If angle A is congruent to angle D and angle B is congruent to angle E, what can you conclude about triangle ABC and triangle DEF?

• They are congruent

• They are similar

• They are parallel

• They are perpendicular

If side AB is congruent to side DE and side BC is congruent to side EF, what can you conclude about triangle ABC and triangle DEF?

• The triangles ABC and DEF are congruent.

• The triangles ABC and DEF are right triangles.

• The triangles ABC and DEF are not congruent.

• The triangles ABC and DEF are similar.

If triangle ABC is congruent to triangle DEF, what can you say about their corresponding angles?

• The corresponding angles of triangle ABC and triangle DEF are supplementary.

• The corresponding angles of triangle ABC and triangle DEF are not equal.

• The corresponding angles of triangle ABC and triangle DEF are equal.

• The corresponding angles of triangle ABC and triangle DEF are complementary.

If triangle ABC is congruent to triangle DEF, what can you say about their corresponding sides?

• Corresponding sides have different angles.

• Corresponding sides are parallel.

• Corresponding sides are not equal in length.

• Corresponding sides are equal in length.

If triangle ABC is congruent to triangle DEF, and angle A is 40 degrees, what is the measure of angle D?

• 40

• 30

• 50

• 60