1. oval   parallel lines   oval   ellipse   rhombus   Hint Half-n-half Clue   2. flach   plane   hemisphere   parallel lines   pyramid   Half-n-half Clue   3. Senkrechtlinien   hemisphere   perpendicular lines   prism   ellipse   Half-n-half Clue   4. Gipfel   vertex   ellipse   segment   parallelogram   Half-n-half Clue   5. parallele Linien   ellipse   oval   parallel lines   hemisphere   Half-n-half Clue   6. gerade Gerade   straight line   hexagon   perpendicular lines   heptagon   Half-n-half Clue   7. Hemisphäre   concave   hemisphere   polygon   pentagon   Half-n-half Clue