Proportionality of volumes
http://dmentrard.free.fr/GEOGEBRA/Maths/VolumratioMD.html
[url=http://dmentrard.free.fr/GEOGEBRA/Maths/VolumratioMD.html]http://dmentrard.free.fr/GEOGEBRA/Maths/VolumratioMD.html[/url]
Information: Proportionality of volumes