1. Congruent Two shapes that are the same size and shape

2. symmetry a line of symmetry is when you divide a shape in half and both sides of the line are the same

3. Perpendicular Two lines that intersect at a 90˚ angle

4. parallel Two lines that do not touch and are equal distances away from each other.

5. vertices the corner of a 2D or 3D shape. The point where two lines meet.

6. Faces the flat surfaces of a 3D shape

7. Edges the place where two faces meet on a 3D figure

8. Polygon a closed figure with 3 or more sides

9. Triangle 2d 3 sides 1 face 3 vertices

10. Circle 2d 1 Face

11. Square 2d 4 sides of equal measure 1 face 4 vertices

12. Rectangle 2d 4 sides (2 with equal measure) 1 face 4 vertices

13. Rhombus 2d 4 sides 1 face 4 vertices

14. pentagon 2d 5 sides 1face 5 vertices

15. hexagon 2d 6 sides 1 face 6 vertices

16. octagon 2d 8 sides 1 face 8 vertices

17. trapezoid 2d 4 sides 1 face 4 vertices

18. Parallelogram 2d 4 sides 1 face 4 vertices

19. Sphere 3d 0 edges 0 faces 0 vertices

20. cube 3d 12 edges 6 faces 8 vertices

21. cone 3d 0 edges 1 face 0 vertices

22. cylinder 3d 0 edges 2 face 0 vertices

23. pyramid 3d 8 edges 5 faces 5 vertices

24. Triangular prism 3d 9 edges 5 faces 6 vertices

25. Rectangular Prism 3d 12 edges 6 faces 8 vertices