Talk:Length between perpendiculars

From Wikipedia, the free encyclopedia
Jump to: navigation, search
WikiProject Ships (Rated Stub-class)
WikiProject icon This article is within the scope of WikiProject Ships, a project to improve all Ship-related articles. If you would like to help improve this and other articles, please join the project, or contribute to the project discussion. All interested editors are welcome. To use this banner, please see the full instructions. WikiProject icon
Stub-Class article Stub  This article has been rated as Stub-Class on the project's quality scale.
 

Lpp on picture[edit]

Why is it called length between perpendiculars? What are the perpendicular things here? —Preceding unsigned comment added by 202.89.189.114 (talk) 06:39, 17 November 2010 (UTC)