1. Geometry: Three Dimensional Solids

2. What is a Three Dimensional Solid?
Sometimes called Space figures
Figures whose points do not all lie in the same plane.
They are not flat like polygons

3. 3 dimensions
It is called three-dimensional, or 3D because there are three dimensions: width, depth and height

4. Parts of a 3D Solid
Edge: A line segment where two faces of a solid meet

5. Parts of a 3D Solid
Face: Flat surface of a solid, you can slap it

6. Parts of a 3D Solid Vertex: A point where two or more edges meet
the “pointy” part

7. Solids

8. What is a net?
When you take a solid apart and lay it down flat you get a NET!
Can you guess which net makes up which solid?

10. Cube

11. Net for a Cube

12. Sphere

13. Cone

14. Cylinder

15. Net for a Cylinder

16. Pyramid
***Has a square on the bottom face, not a triangle***

17. Net for a Pyramid

18. Tetrahedron or Triangular Pyramid
Has a triangle at the base, not a square

19. Net for a Tetrahedron

20. Prism Has the same shape on both the top and the bottom
Looks like it has been stretched out

21. Nets for Prisms

22. Now let’s practice!

23. Which solid is this? How many faces does it have?
How many vertices does it have?
How many edges does it have?

24. Which solid is this? How many faces does it have?
How many vertices does it have?
How many edges does it have?

25. Which solid is this? How many faces does it have?
How many vertices does it have?
How many edges does it have?

26. 3D Solids are EVERYWHERE
Try to find the all the solids in the following pictures