Question 1016559
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an iron pipe 10 feet long has an internal diameter of 1 feet. if the iron is 1/2 inch thick, find the volume of metal in the pipe
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{{{1/2}}} inch is  {{{1/24}}} feet.  INSIDE diameter is given.


Inside RADIUS is {{{1/2}}} FOOT and outside radius is  {{{1/2+1/24}}} feet.


<pre>
Volume just the metal pipe material:

{{{10*pi*((1/2+1/24)^2-(1/2)^2)}}}, cubic feet.

{{{10*pi*((13/24)^2-1/4)}}}

{{{10*pi}}}.({{{(13/24)^2}}}-{{{144/(24^2)}}})

{{{10*pi*(25/(24^2))}}}

{{{(250/576)*pi}}}

{{{highlight((250/576)*pi)}}}
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