Across
- 1. two types: planes and curved surfaces
- 4. both equilateral and equiangular
- 7. the simplest element in geometry
- 8. equal interior angles
- 9. a geometric object measured in "degrees"
- 14. a pointed solid with triangular lateral faces
- 15. describing how much space a 3D figure occupies
- 16. one of the polygons enclosing a polyhedron
- 17. the line segment where two faces meet
- 20. a polygon with three sides
- 22. a solid enclosed by polygons only
- 23. made up of infinitely many points, having length but no breadth
Down
- 2. all interior angles are smaller than 180 degrees
- 3. a flat surface with no thickness
- 5. equal sides
- 6. a geometric figure such as a square and a triangle
- 10. the study of shapes, sizes, positions of objects and relations among objects in space
- 11. describing how much space a plane figure occupies
- 12. a geometric shape describing a ball
- 13. a plane figure enclosed by three or more line segments
- 18. the point where two adjacent sides meet, or the point where three or more edges meet
- 19. at least one interior angle is larger than 180 degrees
- 21. measuring how "long" an object is
- 22. a solid with two identical bases