Geometric Models / Solids
• Geometry: 3D objects, Euler's Law, Nets
• Measurement: Surface / Area, Volume / Capacity
Using Geometric Models / Solids
The surface area of a pyramid involves calculating the area of the base and then the area of the triangular faces.
Some students have trouble visualising all of the faces of 3D solids and find it easier to calculate the surface area using a net.
• A net is the flat 2D pattern that may be folded to make a 3D object. One net for a cube is:
• A net for a square based pyramid is