Quandaries and Queries
  


Question:
where can you find how to get volume of a tube:

3 in across x 3 inch high
5 in across x 5 inch high same formula for both. ONE will get the other.
thanks,mike



Hi Mike,

You didn't say so but I assume that the cross section of your tube is a circle.


The volume of a tube is the area of the base times the height, so if the cross section is a circle you need to know how to find the area of a circle.

The area of a circle is pi times the square of the radius, and henve the volume of a tube is

volume = r2 h where r is the radius and h is the height. In your first tube the radius is 1.5 inches and the hieght is 3 inches so volume = r2 h = 3.1416 1.52 3 = 21.21 cubic inches

Penny


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