Across
- 3. parallelogram where all sides are equal
- 6. 2 pairs of parallel sides
- 8. triangular based pyramid, 4 faces, 6 vertices, 6 edges
- 10. parallelogram with all sides equal and all right angles
- 11. all corners point outwards
- 12. cone with polygon base
Down
- 1. a closed 2D shape with all straight sides
- 2. 4 sides, 2 of which are parallel
- 4. 2 parallel faces, 2 identical faces, elements are corresponding and parallel
- 5. quadrilateral with only one pair of parallel lines
- 7. one corner has 'fallen' in
- 9. 2 sides equal, 1 pair of parallel sides
- 12. cylinder whose base is a polygon and has straight sides