- AEqual and parallel
- BOnly equal
- COnly parallel
- DPerpendicular
Step-by-Step Solution
If one pair of opposite sides is both equal and parallel, the quadrilateral is a parallelogram (a standard theorem).
Answer: A) Equal and parallel
A quadrilateral is a parallelogram if one pair of opposite sides is:
Class 9Properties of a ParallelogramGeometry — Quadrilaterals
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