1. hexagon   piramiddo   rankei   suisen   rokkakei   Hint Half-n-half Clue   2. straight line   chouen   oumen   piramiddo   chokusen   Half-n-half Clue   3. pyramid   heikousen   piramiddo   shikakkei   shihenkei   Half-n-half Clue   4. rhombus   touchou   oumen   ryoukei、hasuhoukei   suisen   Half-n-half Clue   5. parallel lines   shichikakkei   fuchi、hashi   heikousen   totsumen   Half-n-half Clue   6. parallelogram   shichikakkei   heikoushihenkei   heikousen   gokakkei   Half-n-half Clue   7. segment   kukiri,bubun   chokusen   heimen   kousen,rei   Half-n-half Clue