[savedbygrace]

Sorry. I compressed the idea just to make the point to Physicist that the verse was detailing two different things. I referred to the two different things as ID and OD. You were saying they were two different objects, one inside the other, right?

But the point remains: there are different things being measured. Even so, even if he won't accept this, the point I made about the rules of recording measurements and significant digits is still valid.

[VRWC_minion]

You were saying they were two different objects, one inside the other, right?

No. I wish I could draw it. Picture a vase or as the writer says "a cup" or a "lilly blossom".

The diameter of the rim of the cup or the vase will be larger than the diameter of the body of the rim of the cup or the vase.

I identified the two separate circles of one object because there is the circle at the mouth which is larger and which is the rim and their is the circle of the main body which is smaller.

The vessel is supposed to be a bath and the bath would be designed to have a rim that is larger than the main vessel (just like an old fashioned claw tub) to hold water and facilitate entry.

[VRWC_minion]

Here is one example of a shape, i'll see if I can find something closer to what I picture

It at least captures the idea of a rim with a different size body.