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| 1. |
what are the properties of parallelogram |
| Answer» \tA diagonal of a parallelogram divides it into two congruent triangles (\xa0ΔADB is congruent to ΔABC).\tDiagonals of a parallelogram bisect each other.\tOpposite sides are congruent (AB = DC).\tOpposite angles are congruent (∠ADC= ∠ABC).\tConsecutive angles are supplementary (∠DAB + ∠ADC = 180°).\tIf one angle is right angle, then all angles are right. | |