1. convex   Strahl   Vieleck   Konvex   Pentagon   Hint Half-n-half Clue   2. plane   Kante   flach   parallele Linien   gerade Gerade   Half-n-half Clue   3. hemisphere   Segment   Rhombus   Pentagon   Hemisphäre   Half-n-half Clue   4. parallel lines   Viereck   oval   Hexagon   parallele Linien   Half-n-half Clue   5. rhombus   Pentagon   Ellipse   Rhombus   parallele Linien   Half-n-half Clue   6. vertex   Hexagon   Rhombus   Gipfel   Ellipse   Half-n-half Clue   7. polygon   Prisma   Senkrechtlinien   Hemisphäre   Vieleck   Half-n-half Clue