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Parallelograms 2
A
B
C
Result
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Identify the missing reasons to complete the two-column proof. Type the letter of your answer in each blank.

Given:   OPRQ is a parallelogram
Prove:   ΔOPSΔQRS
Choices:
a. Opposite sides of a parallelogram are congruent.
b. SSS Congruence Postulate
c. ASA Congruence Postulate
d. Given
e. Reflexive Property of Segment Congruence
f. The diagonals of a parallelogram bisect each other.
g. Opposite angles of a parallelogram are congruent.
h. CPCTC

Proof:
Statements Reasons
1. OPRQ is a parallelogram
1.
2. OP ¯ RQ ¯
2.
3. OS ¯ SR ¯ and QS ¯ SP ¯
3.
4. ΔOPSΔQRS
4.
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