1. edge   Kante   Konvex   flach   heptágono   Hint Half-n-half Clue   2. perpendicular lines   oval   Vieleck   Ellipse   Senkrechtlinien   Half-n-half Clue   3. pyramid   Pentagon   Viereck   Pyramide   Vieleck   Half-n-half Clue   4. ray   Strahl   parallele Linien   Pyramide   Segment   Half-n-half Clue   5. parallelogram   heptágono   Konvex   Strahl   Parallelogramm   Half-n-half Clue   6. oval   Konkav   Pentagon   oval   gerade Gerade   Half-n-half Clue   7. quadrangle   Viereck   oval   Ellipse   Konvex   Half-n-half Clue