1)the top half of the right circular cone with vertex at the origin and axis the positive z-axis

2)the plane perpendicular to the xz-plane passing through z = x, where

3)the plane perpendicular to the xy-plane passing through y = x, where

4)the base of the right circular cone with vertex at the origin and axis the positive z-axis

5)the plane perpendicular to the yz-plane passing through z = y, where