Consider a set of points R in the space which is at a distance of 2 units from the line  $\frac{\mathrm{x}}{1}=\frac{\mathrm{y}-1}{-1}=\frac{\mathrm{z}+2}{2}$ between the planes

 x-y+2z+3=0 and x-y+2z-2=0.

• A

  The volume of the bounded figure by points .R and the planes is $(10/3\sqrt{3})\pi \text{ sq. units. }$

• B

  The area of the curved surface formed by the set of points R is $(20\pi /\sqrt{6})\text{ sq. units. }$

• C

  The volume of the bounded figure by the set of points R and the planes is $(20\mathrm{\pi }/\sqrt{6}) \mathrm{cubic} \mathrm{units}$

• D

  The area of the curved surface formed by the set of points R is $(10/\sqrt{3})\mathrm{\pi }\text{ sq. units. }$