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 1016561: 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
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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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
:
The overall diameter including the metal in the pipe will be 1 ft, 1 inch, 13"
the radius will be 6.5", find the overall volume in inches (10' = 120')
V+=+pi%2A6.5%5E2%2A120
V = 15927.87475 cu/in
:
Find the volume of the hollow area inside the pipe
V+=+pi%2A6%5E2%2A120
V = 13571.68026 cu/in
:
Find the volume of the metal
15927.87475 - 13571.68026 = 2356.1945 cu/in of metal