DuckCorp Dico

Found 2 definitions

1.                 From Japanese-English FreeDict Dictionary ver. 0.1:
                   
   
   
                   
                     
   角形 /(en)tʃˈaɪniːz(ja)lˈe̞tə (en)tʃˈaɪniːz(ja)lˈe̞tə/, 角型 /(en)tʃˈaɪniːz(ja)lˈe̞tə (en)tʃˈaɪniːz(ja)lˈe̞tə/, かくがた /kˌäkɯᵝɡˈätä/
   (noun (common) (futsuumeishi))
   角形・かくけいsquare shape, oblong, rectangle
   
                   
                 

2.                 From Japanese-English FreeDict Dictionary ver. 0.1:
                   
   
   
                   
                     
   角形 /(en)tʃˈaɪniːz(ja)lˈe̞tə (en)tʃˈaɪniːz(ja)lˈe̞tə/, かくけい /kˌäkɯᵝkˈe̞i/, かっけい /käkkˈe̞i/
   1. (noun (common) (futsuumeishi))
   (N)-cornered polygon, incl. triangle
   2. (esp. かくけい)
   Japanese rectangular envelope (opening on the short dimension; numbered 0-8, A3, A4, each with different sizes)