Answers

2014-11-14T18:33:19+05:30
Consd.r tri.'sABX & QCX.here,
BX=CX
ABX=XCQ(alt int ang)
AXB=CXQ(VERT.OPP.ANG.)

therefore they are congrunt by ASA
i.e
ab=cq (CPCT)_
&
AB=DC (opp sides of llgm)
&
CQ=BP ( ' ')
=>AB=CQ=DC=BP
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