Geometry – Opposite sides of a Parallelogram parallel and equal - Proof – English
Theorem 8: A Quadrilateral is a Parallelogram if a pair of opposite sides is Equal and Parallel.
(I.34) Parallelogram: opposite sides and angles are congruent, Proof
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Quadrilateral having opposite sides equal is a parallelogram
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Parallelogram has both pairs of opposite sides equal (Theorem and Proof)
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Quadrilateral with a pair of opposite sides parallel and equal is Parallelogram (Theorem and Proof)
A quadrilateral is a parallelogram if a pair of opposite sides is equal and parallel / Theorem: 8.8
A quadrilateral is a parallelogram if a pair of opposite sides is equal and parallel
Theorem : A quadrilateral is a parallelogram, if a pair of opposite sides is equal and parallel.