ôxõödata??Xz{ôx7·5data'÷øG\rvfL¡x§7ùÜx§?z{ôx'\r9CL¡ûüýþÿ 0@P(Point)\r??P P(Line)\r@ !" )#$%&P(Triangle)($@ !" 0$%\r&),-./0123.@456$%&789:;<,\r10?"@RECTP(8D&)EFPCUB (8DJ)KJ-.LM\r(1)PRECT/0LM:\rOPQ/0double x,y;YZ[8D&89\\r]^_/0RECT(double, double); `a12bc2defx9y\rvirtual double area,hi12,jk8D&:;\rdouble peri 0 ; jk8D&78\rvirtual int isSquare();i12pqrs?tD&Lruv1 , swuv0\r(2)PCUB?PRECT^_PF/0LM\rOy_/0double height;[8DJ{|\r]^_/0CUB (double, double, double);`a12\rdouble volume,hjk8DJJ;~:;b?P/012area,\rdouble area();jk8DJ[:;~:;9~:78b?P/012\r\rint isSquare,hpqrs?tDJLruv1 , swuv0 , pq
\rb?P/012isSquare ()pq~:rs?tD&,\r(3)12 0CUB9 0RECTbvolume,jk8\rDJJ;hbarea,9isSquare(), M k8DJ[:;pqrs?tDJ,