You are a database developer for a container manufacturing company. 
The containers produced by your company are a number of different sizes and shapes. 
The tables that store the container information are shown in the Size, Container, and Shape Tables exhibit. 
A sample of the data stored in the tables is shown in the Sample Data exhibit. 
Periodically, the dimensions of the containers change. Frequently, the database users require the volume of a container. 
The volume of a container is calculated based on information in the shape and size tables. 
You need to hide the details of the calculation so that the volume can be easily accessed in a SELECT query with the rest of the container information. 

What should you do?

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