Content deleted Content added
→Proof: Put an actual understandable proof first. |
Adding short description: "The midpoints of the sides of an arbitrary quadrilateral form a parallelogram" (Shortdesc helper) |
||
Line 1:
{{short description|The midpoints of the sides of an arbitrary quadrilateral form a parallelogram}}
{{for|the theorem about the moment of a force|Varignon's theorem (mechanics)}}
[[Image:Varignon parallelogram convex.svg|thumb|300px|Area(''EFGH'') = (1/2)Area(''ABCD'')]]
|