Let ABCABC be an acute triangle. Construct a triangle PQRPQR such that AB=2PQAB = 2PQ, BC=2QRBC = 2QR, CA=2RPCA = 2RP, and the lines PQPQ, QRQR, and RPRP pass through the points AA, BB, and CC, respectively. (All six points AA, BB, CC, PP, QQ, and RR are distinct.)