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凹 おう多角 たかく形 けいじゃない
ōtaka kukeijanai

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Noun
, 
Da Copula
, 
Negation Auxiliary

The negative form of 凹多角形

1. Not a concave polygon.

Negative
, 
Geometry

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凹多角形じゃない

凹多角形じゃない【おうたかくけいじゃない】 Activity

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