Read the proof. given: aeec; bddc prove: △aec ~ △bdc statement and reason 1. aeec; bddc 1. given 2. ∠aec is a rt. ∠; ∠bdc is a rt. ∠ 2. definition of perpendicular 3. ∠aec ≅ ∠bdc 3. all right angles are congruent 4. ? 4. reflexive property 5. △aec ~ △bdc 5. aa similarity theorem what is the missing statement in step 4? a ∠ace ≅ ∠ace b ∠eab ≅ ∠dbc c ∠eac ≅ ∠eac d ∠cbd ≅ ∠dbc