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what are the different conditions that makes a quadrilateral a parallelogram

Sagot :

Answer:

If both pairs of opposite sides are parallel, then the quadrilateral is a parallelogram. Condition #3: If both pairs of opposite angles are congruent, then the quadrilateral is a parallelogram. Condition #4: If an angle is supplementary to both consecutive angles, then the quadrilateral is a parallelogram.

Explanation:

i dont know

Answer:

Def: If both pairs of opposite sides are parallel, then the quadrilateral is a parallelogram. Condition #3: If both pairs of opposite angles are congruent, then the quadrilateral is a parallelogram. Condition #4: If an angle is supplementary to both consecutive angles, then the quadrilateral is a parallelogram.

Explanation:

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