SOLUTION: If a metal pipe 10m long has an external diameter of 12cm and a thickness of 1cm, find the volume of the metal used in making the pipe

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Question 1050525: If a metal pipe 10m long has an external diameter of 12cm and a thickness of 1cm, find the volume of the metal used in making the pipe
Answer by ikleyn(52803)   (Show Source): You can put this solution on YOUR website!
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If a metal pipe 10m long has an external diameter of 12cm and a thickness of 1cm, find the volume of the metal used in making the pipe
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 

Outer radius is  = 6 cm.

Inner radius is 6 - 1 = 5 cm.

The volume of the metal is the difference of volumes of two cylinders

V =  =  =  .


Here 1000 = 1000 cm = 10 m.


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