Talk:Q42344

From Wikidata
Jump to navigation Jump to search

Autodescription — cone (Q42344)

description: geometric shape
Useful links:
Classification of the class cone (Q42344)  View with Reasonator View with SQID
For help about classification, see Wikidata:Classification.
Parent classes (classes of items which contain this one item)
Subclasses (classes which contain special kinds of items of this class)
cone⟩ on wikidata tree visualisation (external tool)(depth=1)
Generic queries for classes
See also


Volume of a cone[edit]

V=(base area)*height*√2/4=0.8radius²*height*√2

File:Comparing the volume of quarter cone to one eighth of a sphere.png
Comparing the volume of quarter cone to one eighth of a sphere

Gmac4247 (talk) 15:42, 5 February 2024 (UTC)[reply]

You really don't see the difference between a part of a sphere and a part of a cone? Please don't advance your personal point of view on this project, if you have good reference (in academic magazine) then show it. --Infovarius (talk) 10:00, 7 February 2024 (UTC)[reply]
I see the difference between the volume of a quarter cone with height=radius and the eighth of a sphere with equal radius as V(quarter cone)=(3.2radius²/4)*radius*√2/4 : V(eighth sphere)=(√(3.2)radius/2)³. I regard my personal point of view as a valid way to compare the volumes. I don't have any magazines, in which this is published. Gmac4247 (talk) 18:18, 20 February 2024 (UTC)[reply]