1. a quadrilateral is a parallelogram if both pairs of ________ sides are _______
2. a quadrilateral is a parallelogram if both pairs of _______ angles are ________
3. a quadrilateral is a parallelogram if both pairs of _______ angles are ________
4. a quadrilateral is a parallelogram if the _________ bisect each other
5. a quadrilateral is a parallelogram each __________ divides a parallelogram into two ___________
6. a quadrilateral is a parallelogram if one pair of opposite sides are both ________ and ________
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Answer:
1. opposite, parallel
2. opposite, equal
3. consecutive, supplementary
4. verticals
5. vertical, triangles
6. parallel, congruent
Step-by-step explanation: