Question 1016559
{{{1/2}}} inch is  {{{1/24}}} feet.  INSIDE diameter is given.
Inside RADIUS is {{{1/2}}} FOOT and outside radius is  {{{1/2+1/48}}} feet.


Volume just the metal pipe material:
{{{10*pi*((1/2+1/48)^2-(1/2)^2)}}}, cubic feet.


{{{10*pi((25/48)^2-1/4)}}}
{{{10*pi((25/48)^2-576/(48^2))}}}
{{{10*pi(49/(48^2))}}}
{{{(490/2304)pi}}}
{{{highlight((245/1152)pi)}}}