2)} & GSP! ?N j l"l $۲۲l4l۲  A ]:2afpm (` @2@pM .WThis sketch illustrates the equivalence class of parallelograms with the same area and perimeter. It also traces the locus of the upper left corner of the parallelograms Rob Berkelman, Key Curriculum Press, 1994|~t@t@AA ~~n~n~n M` @2@pCkCvj L` @2@pC%CvB'G,0( C` @2@pB$CBG  B` @2@pAC' t` @2@pC%CvCkCv?AG'd:S j` @2@pACB$C?= N` @2@p C,CvBGAP F` @2@p CCBWG\@Y E` @2@p BC' u` @2@pC,CvC,C?AVG  s` @2@pBCCC? '  m` @2@pCCCC? V'\* k` @2@pBCBC? 5m 1` @2@pC,CvCA?5%F?5%F !W&\33 G` @2@p BC)5f 5` @2@p @wJX Length(Segment s) = z '$@$< -@xz@@'$6.37 cm `@@ 38vers R` @2@p C,BT kp. P` @2@p CCv VG\  r` @2@pBCBC?  &' n` @2@pBCBC?!&vers J` @2@pCC f 3` @2@p ?j0FLength(Segment r) = z '$@$< -@xz@@'$1.09 cm `@@  V&  q` @2@pCCBC? G  p` @2@pCCCC? v 6` @2@pC,CvB?5%F?5%FV 3` @2@pC,BTB?5%F?5%FL* 2` @2@pCCvB?5%F?5%F A1` @2@p CMCv Z1` @2@p C,CU  S1` @2@p C,A  Q1` @2@p CCvp@  b1` @2@pCMCvCCv? Drag @2@p CMCv!j  m1ag @2@pCMCvCCv? "'LDEF d1ag @2@pCMCvCMC? "  c1ag @2@pCMCvC,Cv?"5  V 81ag @2@pCMCvCA?5%F?5%F"#38z Rag @2@pC,BT%28'LDEF eag @2@pC,BTBBT?$'icl4 J1ag @2@p CMT(&vers H1ag @2@p CMT(&38D C1ag @2@pCMBT($ H1g @2@pC T*   n1g @2@pCMTCMCv?"*38j M1g @2@pCMBT-('LDEF p1g @2@pC,CvC,D@?-38 K1g @2@pC,BT(/5 +61g @2@pC,BTC,CvCMCvCMBT0".38 Trace@2@pC,BT0