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A metal pipe has outer diameter 5mm and 3mm thick metal. Calculate the volume used to...
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High School Teacher
To calculate, basically find the outer volume minus the inner volume:
`V=pir^2h` becomes `V=pi h ((r_(1))^2- (r_(2))^2)`
First convert the cm into mm. Thus the length = 180mm.The thickness of the pipe is 3mm so the inner diameter (d) = 2mm
If `d_1 = 5 therefore r_1=2.5` and `d_2=2therefore r_2=1`
`V=pi times 180( 2.5^2-1^2)`
`therefore V=2968.81 mm^3`
Posted by durbanville on June 28, 2013 at 10:26 AM (Answer #1)
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