[填空题]
The complex numbers z and w correspond to the points An2 lsc:p00zbb and B as shown ua9 r0)beh 04,shh5up;arvt aon the diagram belh,90br)vt; 5a0a4se u hpauh row.
1.Find the exact value of ∣z−w∣.
∣z−w∣=x$\sqrt{y-\sqrt{z}}$; x= , y= , z= .
2.1.Find the exact perimeter of triangle AOB.
perimeter=x+∣z−w∣; x= .
2.2.Find the exact area of triangle AOB.
area=$\frac{x}{y}$ ; x= , y= .