[填空题]
The complex numbers z and w correspond to the points A and B as show2y6i:nl(kvzl nlg*mx xv8 rpc1 ,0lygi;4-nns on the diagram belonl vspl4;xx8 cg yr1 0i-gm*,nw.
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= .