1. pirámide   straight line   concave   edge   pyramid   Hint Half-n-half Clue   2. rombo   pyramid   rhombus   prism   oval   Half-n-half Clue   3. cuadrilátero   quadrangle   quadrilateral   parallel lines   vertex   Half-n-half Clue   4. segmento   edge   segment   pentagon   oval   Half-n-half Clue   5. línea recta   oval   edge   rhombus   straight line   Half-n-half Clue   6. hexágono   hexagon   concave   rhombus   quadrangle   Half-n-half Clue   7. cóncavo   heptagon   plane   concave   segment   Half-n-half Clue