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7. If two parallelograms PQAD and PQBC are on the opposite sides of FQ.methat ABCD is a parallelogram |
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Answer» Answer: Step-by-step explanation: pqad is a parallelogram. then AD is parallel to pq and ad = pq(opp. sides of parallelogram) _(1) pqbc is a parallelogram. then BC is parallel to pq and bc = pq.(opp. sides of parallelogram)_(2) from 1 and 2 - ad parallel to pq parallel to bc and ad=pq=bc thus ad parallel to bc and ad = bc then one PAIR of opp .sides are equal and parallel thus abcd is parallelogram |
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