When we talk about certain math-related items, it's helpful to use precise terms. Here's an example.
Sunday my wife and I were looking at a car in front of us. She said "Wow! It's fat". I asked if she meant the rear tires, or the body shape and size. She replied "It's got a wide wheelbase." That was an excellent try - wheelbase is a good automotive dimensional term - but in this case it was not the right word.
Here's a Mercedes factory diagram labeled using terms I learned in an earlier automotive career:
With enough effort, you can describe vehicles precisely with words, but it's often better to provide a diagram which saves words (and translating).
Here are two dimension diagrams from Mitchell International, where I worked for many years. These are used by collision repair shops to return your vehicle to the proper condition after a crash.
Now back to my wife's comment - the best way to express her observation in a mathematical, dimensional, automotive sense would be to say "that yellow car's got a wide track."
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