Across
- 5. a solid enclosed by polygons only
- 7. the simplest element in geometry
- 8. made of infinitely many points, having length but no breadth
- 10. the polyhedron that has 4 faces
- 12. the space between two lines measured in "degrees"
- 13. polygon with 4 sides
- 14. objects that occupy space
Down
- 1. equal sides
- 2. the line segment formed when two faces meet
- 3. the point where two adjacent sides meet
- 4. all interior angles are smaller than 180 degrees
- 5. a flat surface which no thickness
- 6. a geometric shape describing a ball
- 9. a pointed solid with triangular lateral faces
- 11. a solid with two identical bases