5. Use the nets you have made or any shapes you have in the classroom to fi ll in the spaces in this table.
No. of faces
Cuboid
Cylinder Pyramid Cone
Tetrahedron Sphere
Triangular prism
Cube
Pentagonal prism
6. This is the net of an octahedron. Why do you think it’s called an octahedron?
7. Copy the net of the octahedron onto a piece of paper. Cut it out and assemble it.
a) What shape are the faces of the octahedron? b) How many faces does it have? c) How many edges does it have? d) How many vertices does it have? e) Is it a regular polyhedron?
Edges Vertices Polyhedron (yes/no)
Regular polyhedron (yes/no)
Homework 1. Draw nets for the following 3-D shapes.