Proving Angles Congruent Post-Flashcard

Front

∠3 and ∠1 are _____________

Back

Nothing

Front

∠1 and ∠2 are _____________

Back

Adjacent

Front

∠7 and ∠8 are _______________

Back

Nothing

Front

Find the missing angle.

Back

67

Front

Which are pairs of vertical angles? Options: ∠COB & ∠COA, ∠AOD & ∠AOC, ∠COB & ∠AOD, ∠BOD & ∠AOD

Back

∠COB & ∠AOD

Front

What is the justification (reason)?

Back

Reflexive Property

Front

Reason for number 2: Definition of congruent angles, Complement Theorem, Congruent Complement theorm, Congruent Supplement Theorem

Back

Congruent Complement theorm

Front

Reason for number 5:

Back

Substitution Property

Front

Reason for number 3:

Back

Addition Property

Front

Reason for number 3:

Back

Addition Property