Exploring Adding and Subtracting Rational Expressions

What does CPCTC stand for?

• Congruent Triangles of Corresponding Parts are Congruent

• Corresponding Parts of Congruent Triangles are Congruent

• Congruent Parts of Corresponding Triangles are Congruent

• Corresponding Triangles of Congruent Parts are Congruent

When can you use CPCTC in a proof?

• After proving the triangles are congruent

• Before proving the triangles are congruent

• Without proving the triangles are congruent

• Only if the triangles are similar

Which method was used to prove triangle BCA is congruent to triangle DCA?

• ASA

• AAS

• SAS

• SSS

What property states that AC is congruent to AC?

• Symmetric Property

• Substitution Property

• Transitive Property

• Reflexive Property

In the example with PS parallel to QR, which angles are congruent due to alternate interior angles?

• Angle PSQ and Angle RQS

• Angle PQR and Angle QSR

• Angle PQS and Angle QRS

• Angle QPS and Angle SRQ

Which method was used to prove triangle QPS is congruent to triangle SRQ?

• AAS

• SAS

• SSS

• ASA

What is the definition of midpoint used for in the proof?

• To show two angles are congruent

• To show two sides are congruent

• To show two triangles are congruent

• To show two lines are parallel

Which method was used to prove the triangles congruent in the example with vertical angles?

• AAS

• SAS

• SSS

• ASA

In the final example, which angles could be used as alternate interior angles?

• Angle A and Angle E

• Angle C and Angle D

• Angle G and Angle H

• Angle B and Angle F

Which methods could be used to prove the triangles congruent in the final example?

• Neither ASA nor AAS

• Both ASA and AAS

• Only ASA

• Only AAS