Given: A intersects De at point C. What is the missing reason in step 5? Prove DCB ZECA O linear pair postulate given definition of complementary angles O congruent complements theorem С B Reasons 1 given Statements 1. AB intersects DE at point C. 2.2DCB and BCE are a linear pair 3. 2DCB is supp to ZBCE 4. ZBCE and ZECA are a linear pair 5. ZBCE is supp. to ZECA, 6. DCB ZECA 2. def. of lin pr 3. linear pair post. 4 def. of lin pr 5. ? 6 a supp thm
Answer
The missin reason in issing step 5 is linear I linear pair postulate.