What is the proper term for the area of a cross section? I am looking at these two formulations:
- cross-section area
- cross-sectional area
A is cross-sectional area of the pipe [...]
I have seen both formulations, but mostly the first one. But I have to admit that my dictionary says the second one. I should follow my dictionary of course, but would like to confirm if the first one is useable or not.
The context is a technical physics report.