1. Ellipse   edge   rhombus   ellipse   parallelogram   Hint Half-n-half Clue   2. Hemisphäre   ellipse   straight line   prism   hemisphere   Half-n-half Clue   3. Viereck   rhombus   hexagon   quadrilateral   polygon   Half-n-half Clue   4. Konkav   concave   plane   ellipse   quadrilateral   Half-n-half Clue   5. Parallelogramm   parallelogram   hexagon   edge   pentagon   Half-n-half Clue   6. heptágono   parallelogram   pyramid   prism   heptagon   Half-n-half Clue   7. oval   prism   ellipse   oval   concave   Half-n-half Clue