CPM Homework Help : CCG Problem 7-123

For one of parts (a), (b) or (c) of problem 7-122, create a flowchart or a two-column proof for your conclusion. Remember to start with the given facts and to provide a justification for each step.

Step 1:

Make a two-column proof and start with the facts.
Facts are things that are given or have theorems, definitions or postulates to back them up.

	Statements:	Reasons:
Step 2 (fact):	$\overline{EC} = \overline{CA}$ $m\angle CED=m\angle CAB$	Given Given
Step 3 (fact):	$m\angle ECD=m\angle ACB$	Vertical Angles
Step 4 (conclusion):	$ΔCAB≅ΔCED$	$\text{ASA}≅$