Question

a quadrilateral ABCD is a parallelogram if​

Answer 1

Answer:

a quadrilateral ABCD is a parallelogram if the opposite sides are equal and parallel to each other.

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Answer 2

HEYA!

A QUADRILATERAL ABCD IS A PARALLELOGRAM

• IF BOTH PAIRS OF OPPOSITE SIDES OF A QUADRILATERAL  ARE PARALLEL THEN IT IS A PARALLELOGRAM (FOR QUADRILATERAL ABCD- AB=CD AND AC=BD)

• IF BOTH PAIRS OF OPPOSITE SIDES OF A QUADRILATERAL ARE CONGRUENT THEN IT IS A PARALLELOGRAM(FOR QUADRILATERAL ABCD - AB≅CD AND AC≅BD)

• IF BOTH PAIRS OF OPPOSITE ANGLES OF A QUADRILATERAL ARE CONGRUENT THEN IT IS A PARALLELOGRAM(FOR QUADRILATERAL ABCD - ∠A≅∠D AND ∠B≅∠C

• IF THE DIAGONALS OF A QUADRILATEL BISECT EACH OTHER THEN IT IS A PARALLELOGRAM( FOR QUADRILATERAL ABCD AD BISECTS BC)

#BAL

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