[填空题]
The diagram below shows part o2ci-p zdpdz ;23;lbapmu:j xa /:zh 4fcb(5 etf the graphs of y=$(x+2)^{2}$ and y=$(6-x)^{2}$ .
1. Find the coordinates of the points P, Q and R .
P is ( , ) ;Q is ( , ) ;R is ( , )
The shaded region is rotated through $360^{\circ}$ about the x -axis.
2. Calculate the volume of the solid obtained.
