U3: Solids and Nets

Key Learning Points:

• Know the spellings of the various 3 dimensional solids.


• A cube has 6 faces and each face is a square. Thus all sides are of the same length.


• A cuboid has 6 rectangular faces. However, 2 of the sides can be squares.


• A prism can have a minimum of 5 sides. The 2 ends (either top or bottom) have the same shape and are parallel to each other.


• A pyramid can have a minimum of 4 sides. The base can be a triangle, square or rectangle. However the other faces on top must be triangles.


• A cylinder is similar to a prism but has 3 sides. The 2 parallel ends are circular in shape. The 3rd side is cylindrical / rounded in shape.


• Nets are figures that when folded, can form either one of the solids above.


• Given a Net or Solid, count the number of sides. Make sure that both numbers tally before matching them together.