1. Use of surface measures

Hi All! I have a question related with surface measures. When we talk about a number of square inches, should we refer them to area, surface or space?

Example: 4 in2- this is the area (?) of the smallest oak created in bottle as part of a unique art project.

2. Re: Use of surface measures

Four square inches may be the area of the base of the bottle in which the oak was grown. It cannot be the 'area' (a two-dimension concept) of the oak or the bottle (three-dimension objects).

3. Re: Use of surface measures

...

Square units (e.g. 4 in2) refer to area, cubic units ( e.g. 4 in3 ) refer to volume (but in lay terms you might be able to use the word 'space').

So it would be an area of 4 in2. You could refer to the surface area of the oak in square inches, but that would be rather usual.

4. Re: Use of surface measures

Trees have a drip line which is the horizontal projection of the foliage onto the ground. This being a plane surface, it's measured in (for example) square feet or square yards. In the case of a miniature, it would likely be measured in square inches.

5. Re: Use of surface measures

Note that in^2 or ft^3, etc. is uncommon in normal use with customary measures. You would more likely see "sq in" or "cu ft."

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