Important points:
1. 2-D shapes = plane figures
2. 3-D shapes = solid figures
3. Vertices = corners
4. Edges = line segments
5. Faces = flat surfaces
6. Isometric sketch is drawn of isometric dot paper
7, Oblique sketch does not have proportional lengths.
8.
Shape |
Vertices |
Edges |
Faces |
Cube |
8 |
12 |
6 |
Cuboid |
8 |
12 |
6 |
Cone |
1 |
1 |
2 |
Cylinder |
0 |
2 |
3 |
Sphere |
0 |
0 |
1 |
Square pyramid |
5 |
8 |
5 |
Triangular pyramid |
4 |
6 |
4 |
Tetrahedron |
4 |
6 |
4 |
Square prism |
8 |
12 |
6 |
Triangular prism |
6 |
9 |
5 |