triangle and middle point@@

There is Triangle ABC. Point P is on Triangle ABC. Point Q is the middle point of OP. The locus of Point Q is Triangle A'B'C'. What the geometric quality is there between Triangle ABC and The locus of Point Q ? E-mail me @You can also move points (A,B,C,O,P) on CABRI. Download CABRI‡U data (d82) from here.