[填空题]
The diagram below shows part of the graphsugkgx.6t 75mr3-zw ql cr9w:ccciv k8x2 g qa+8/lb5j 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.
