[填空题]
The diagram below showslt50jzb a7vo 2 part of tv;ntkooze n jk)a-f*e3x9v,4 he 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.