Do you think it would be better for a rectangle to show its width and height in its own plane? 
 
I was kind of a bit worried about a readout like that being kind of easy to confuse with the general bounding box size display. 
 
Currently the ones that have special cases look enough different from a bounding box that I wasn't very worried about them, like a line has just one value of Length:   and  currently everything else other than that starts with a Radius: value which doesn't look like a bounding box size. 
 
But if I put something   width:  height:   in there, that would possibly be easy to confuse with the    xsize x ysize x zsize  bounding box size display. 
 
    - Michael 
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