1. elipse   parallel lines   oval   ellipse   pyramid   Hint Half-n-half Clue   2. cuadrilátero   quadrilateral   quadrangle   prism   edge   Half-n-half Clue   3. pirámide   edge   pyramid   rhombus   prism   Half-n-half Clue   4. borde   edge   perpendicular lines   pyramid   convex   Half-n-half Clue   5. heptágono   parallel lines   ellipse   hexagon   heptagon   Half-n-half Clue   6. cóncavo   concave   vertex   ellipse   edge   Half-n-half Clue   7. plano   segment   plane   straight line   quadrilateral   Half-n-half Clue