in a quadrilateral ABCD, AB = CD, AND angle ABC = angel BCD. prove that AD and BC are parallel
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Step-by-step explanation:
First we will draw a diagonal between angle B and angle D
In triangle BDC and triangle ABD
AB=CD
BD=BD (COMMAN)
BDC =ABD
TRIANGLE BDC IS CONGRUENT TO TRIANGLE ABD
BY CPCT
AD IS PARALLEL TO BC
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