In the alongside diagram, ABCD is a parallelogram in which AP bisects angle A and BQ bisects angle B, then
AQ=BP
A
True
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B
False
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Solution
The correct option is A True GivenABCDisaparallelogram;∠PBQ=∠QBA=∠1&∠QAP=∠PAB=∠2Fromthefigure,∠PBQ=∠AQB=∠1{AQ∥BP&BQisthetransversal}So∠AQB=∠QBA=∠1⇒△BAQisanisoscelestriangle{sincebaseanglesareequal.}∴in△BAQ,SideAQ=SideAB−−−(1)Againfromthefigure,∠QAP=∠APB=∠2{AQ∥BP&APisthetransversal}So∠PAB=∠APB=∠2⇒△ABPisanisoscelestriangle{sincebaseanglesareequal.}∴in△ABP,SideBP=SideAB−−−(2)From(1)&(2),wegetAQ=BP