Wikipedia:Articles for deletion/Right circular hollow cylinder
is there any reason why this can't be merged with Cylinder (geometry) appearing under Cylinder (geometry)#Other types of cylinders|Other types of cylinders?, as for other "elementary topics" being separate, merge discussions can be started on their respective talkpages if editors think 
— User:Coolabahapple, 11:17, 27 September 2016 (UTC)
Stance: comment
Cited policy: WP:OTHERSTUFF (Wikipedia:Arguments to avoid in deletion discussions)