Across
- 3. A straight line connecting two opposite corners of a polygon
- 4. Opposite sides equal, 4 right angles, 2 lines of symmetry
- 7. 5 sides, angles sum to 540 degrees
- 9. Opposite sides parallel and equal, opposite angles equal
- 10. 8 sides, angles sum to 1080 degrees
- 11. Figures that have the same shape but different sizes
- 13. All points on the edge are equidistant from a central point(radius
- 14. 1 circular base, 1 apex, 1 curved surface
- 15. 6 square faces, 8 vertices, 12 edges
- 16. The corners or points where edges of a 3D shape meet
- 18. Lines that are always the same distance apart and never meet
- 19. 4 equal sides,4 right angles,4 lines of symmetry
- 20. The line segments where two faces of a 3D shape meet
Down
- 1. Figures that have the same shape and size
- 2. The flat surfaces of a 3D shape
- 5. 6 sides, angles sum to 720 degrees
- 6. Lines that intersect at a right angle(90 degrees)
- 8. 4-sided polygon, sum of interior angles 360
- 11. A perfectly round shape with all points on its surface at an equal distance from the center
- 12. 4 equal sides, opposite sides parallel, opposite angles equal
- 17. 2 parallel circular bases, 1 curved surface
- 21. A shape has symmetry if it can be folded in half and both halves match