3d shape nets for 11 plus
21 October 2026
Understanding 3D shape nets
3D shape nets are flat patterns that can be folded to make solid shapes, such as cubes and prisms. In the 11 plus, questions often ask children to recognise which net matches a 3D shape, or to count faces, edges and vertices.
Why nets matter for 11 plus maths
Recognising and visualising nets helps children solve geometry questions more confidently. It builds spatial awareness, which is key for answering questions about how shapes fit together or what they look like when unfolded.
Worked example: finding the surface area of a cube net
A cube net has 6 squares. If each square measures 4 cm by 4 cm:
Area of one square: 4 cm × 4 cm = 16 cm²
Multiply by the number of faces: 16 cm² × 6 = 96 cm²
So, the total surface area of the cube is 96 cm².
Practical tip for parents
Encourage your child to cut out nets from paper and fold them into 3D shapes. This hands-on activity makes it easier to see how the flat net turns into a solid, and helps reinforce their understanding.
Key insight: Practising with 3D shape nets strengthens spatial reasoning, which is essential for tackling 11 plus geometry questions with confidence.
