SOLUTION: 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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Question 1016559: 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
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
1%2F2 inch is 1%2F24 feet. INSIDE diameter is given.
Inside RADIUS is 1%2F2 FOOT and outside radius is 1%2F2%2B1%2F48 feet.

Volume just the metal pipe material:
10%2Api%2A%28%281%2F2%2B1%2F48%29%5E2-%281%2F2%29%5E2%29, cubic feet.

10%2Api%28%2825%2F48%29%5E2-1%2F4%29
10%2Api%28%2825%2F48%29%5E2-576%2F%2848%5E2%29%29
10%2Api%2849%2F%2848%5E2%29%29
%28490%2F2304%29pi
highlight%28%28245%2F1152%29pi%29

Answer by ikleyn(52778) About Me  (Show Source):
You can put this solution on YOUR website!
.
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%2F2 inch is 1%2F24 feet. INSIDE diameter is given.

Inside RADIUS is 1%2F2 FOOT and outside radius is 1%2F2%2B1%2F24 feet. 

Volume just the metal pipe material:

10%2Api%2A%28%281%2F2%2B1%2F24%29%5E2-%281%2F2%29%5E2%29, cubic feet.

10%2Api%2A%28%2813%2F24%29%5E2-1%2F4%29

10%2Api.(%2813%2F24%29%5E2-144%2F%2824%5E2%29)

10%2Api%2A%2825%2F%2824%5E2%29%29

%28250%2F576%29%2Api

highlight%28%28250%2F576%29%2Api%29