1. convex   Hexagon   Pyramide   Vieleck   Konvex   Hint Half-n-half Clue   2. parallelogram   Vieleck   Ellipse   Konkav   Parallelogramm   Half-n-half Clue   3. perpendicular lines   Senkrechtlinien   Segment   Kante   Viereck   Half-n-half Clue   4. concave   Hexagon   Viereck   Konkav   Pentagon   Half-n-half Clue   5. heptagon   heptágono   Pentagon   Hemisphäre   Parallelogramm   Half-n-half Clue   6. rhombus   Prisma   Rhombus   Hexagon   Ellipse   Half-n-half Clue   7. edge   Kante   gerade Gerade   Prisma   Vieleck   Half-n-half Clue