Read the proof. Statement Reason 1. given Given: AE1 EC; BD 1 DC 1. AEI EC;BD IDC Prove: AAEC - ABDC A 2. ZAEC is a rt. 2; ZBDC 2. definition of is a rt. 2 perpendicular 3. ZAEC • ZBDC 3. all right angles are congruent 4. ? 4. reflexive property 5. AAEC - ABDC 5. AA similarity theorem. What is the missing statement in step 4? B D O ZACE = ZBCD O ZEAB DBC O ZEAC LEAC O ZCBD ZDBC

Read the proof Statement Reason 1 given Given AE1 EC BD 1 DC 1 AEI ECBD IDC Prove AAEC ABDC A 2 ZAEC is a rt 2 ZBDC 2 definition of is a rt 2 perpendicular 3 ZA class=