1. pentágono   parallel lines   pentagon   convex   perpendicular lines   Hint Half-n-half Clue   2. plano   straight line   pentagon   vertex   plane   Half-n-half Clue   3. línea recta   prism   edge   ellipse   straight line   Half-n-half Clue   4. cóncavo   concave   segment   pentagon   quadrilateral   Half-n-half Clue   5. hemisferio   pentagon   hemisphere   plane   polygon   Half-n-half Clue   6. líneas perpendiculares   perpendicular lines   parallel lines   quadrilateral   segment   Half-n-half Clue   7. cuadrilátero   quadrangle   heptagon   plane   edge   Half-n-half Clue