Most of a 12-Ounce Can

The formula for the volume of a cylinder is V = nrh where r is the radius of the circular base and h is the height between the bases or circles. To find the surface area of a cylinder, use SA = 2nf + 2nrh = 2nr(r + / ). 

The volume of a cylindrical tank may be measured in cubic feet or cubic yards, or you may get to work with liquid measures such as gallons or quarts. tBE Equivalences are used to change from one unit to another. 

1 cubic foot = 7.481 gallons 1 gallon = 0.134 cubic foot 1 ounce = 1.805 cubic inches 

The Problem A cylindrical tank has a height that s equal to its diameter and it contains 128,000ti cubic feet of liquid. What is the height of the tank  

Use the formula for the volume of a cylinder, replacing the Uwith the number of cubic feet. The radius of a circle is half the diameter, so, if the height is equal to the diameter, then the height is equal to twice the radius. Replace the h in the volume formula with 2r and solve for r. 

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