Here's the question you clicked on:
ze4life
State the principal definition or theorem that enables you to deduce or prove, from the information given? PQ=SR;PQ||SR PQ||SR;PS||QR <PSR=RQP;<SRQ=QPS PQ=SR;PS=QR PA=1/2 PR;SA=1/2 SQ
Is there a figure?
@ze4life We are in dire need of a diagram for this problem.