1. borde   quadrilateral   heptagon   plane   edge   Hint Half-n-half Clue   2. elipse   ellipse   pyramid   polygon   edge   Half-n-half Clue   3. cóncavo   ellipse   segment   vertex   concave   Half-n-half Clue   4. pentágono   hexagon   heptagon   pentagon   quadrangle   Half-n-half Clue   5. prisma   pentagon   rhombus   prism   polygon   Half-n-half Clue   6. plano   plane   convex   rhombus   quadrilateral   Half-n-half Clue   7. hexágono   hexagon   parallel lines   oval   plane   Half-n-half Clue