20210901, 02:10  #749  
"Ed Hall"
Dec 2009
Adirondack Mtns
4,001 Posts 
Quote:
Edit: I suppose you could call volume A if you wanted to. . . Last fiddled with by EdH on 20210901 at 02:15 

20210901, 02:23  #750 
Undefined
"The unspeakable one"
Jun 2006
My evil lair
2^{3}×5×157 Posts 

20210901, 11:29  #751  
Bamboozled!
"πΊππ·π·π"
May 2003
Down not across
2·3·5^{2}·73 Posts 
Quote:
Simple dimensional analysis shows that the formulae all denoted areas. All products of lengths contain precisely two factors. 

20210901, 12:51  #752  
"Ed Hall"
Dec 2009
Adirondack Mtns
FA1_{16} Posts 
Yep!
Quote:


20210901, 12:59  #753 
Undefined
"The unspeakable one"
Jun 2006
My evil lair
2^{3}·5·157 Posts 

20210901, 13:09  #754 
"Ed Hall"
Dec 2009
Adirondack Mtns
4,001 Posts 
Thank you  surface area of 3D object, rather than volume of 3D object! I was kind of thinking something wasn't quite correct for volume in the third example with pi*r/2.

20210901, 13:20  #755  
Bamboozled!
"πΊππ·π·π"
May 2003
Down not across
2·3·5^{2}·73 Posts 
Quote:
None of the objects depicted are threedimensional. They are just flat shapes annotated with superfluous lines, etc, to fool you into thinking that they represent 3D objects. The "cuboid" for instance, is just a rectangle with a rhombus adjoined to two of its sides. The "cone" is a triangle adjoined to a segment of a circle, and so on. 

20210901, 14:25  #756  
"Ed Hall"
Dec 2009
Adirondack Mtns
4,001 Posts 
Quote:
Thank you for the help. (And, especially, for pointing out that I must take the time to fully look at these to appreciate them.) 

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