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##========평행사변형,parallelogram =,parallelogram . 평행사변형 parallelogram
Sub:
[[평행사변형_법칙,parallelogram_law]]

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Twin:
[[Libre:평행사변형]]
##= https://librewiki.net/wiki/평행사변형
[[Namu:평행사변형]]
##= https://namu.wiki/w/평행사변형
[[WtEn:parallelogram#Noun]]
## https://en.wiktionary.org/wiki/parallelogram#Noun
[[MathWorld:Parallelogram]]
##= https://mathworld.wolfram.com/Parallelogram.html
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Up: [[피겨,figure]]=[[셰이프,shape]] > [[다각형,polygon]] > [[사각형,quadrilateral]] > [[등변사각형]]{ NN:등변사각형 Ggl:등변사각형 }
[[볼록사각형,convex_quadrilateral]]