1. parallel'nyye linii   ray   oval   parallel lines   polygon   Hint Half-n-half Clue   2. perpendikul'arnyye linii   pentagon   ray   perpendicular lines   polygon   Half-n-half Clue   3. plóskij, róvnyj   edge   straight line   plane   rhombus   Half-n-half Clue   4. chetyrehugol'nik   pyramid   edge   prism   quadrilateral   Half-n-half Clue   5. chetyrehugol'nik   quadrangle   hexagon   heptagon   hemisphere   Half-n-half Clue   6. shestiugol'nik   parallelogram   hexagon   straight line   ray   Half-n-half Clue   7. mnogougol'nik   convex   hexagon   prism   polygon   Half-n-half Clue