6. Justify the last two steps of the proof.
Given: ABCD is a parallelogram.
Prove: A4BC = ACDA
A
B
1. ABDC is a parallelogram.
2. AB DC and BC= DA
3. AC = CA
4. JABC = ACDA
D
1. Given
2. Opposite sides of a parallelogram are congruent.
3.
C
4.
?

6 Justify the last two steps of the proof Given ABCD is a parallelogram Prove A4BC ACDA A B 1 ABDC is a parallelogram 2 AB DC and BC DA 3 AC CA 4 JABC ACDA D 1 class=