Year 2 Maths Geometry

3D Shapes

3D shapes are solid objects that take up space. Unlike flat 2D shapes, 3D shapes have faces, edges, and vertices.

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Sphere

0 faces, 0 edges, 0 vertices

Examples: ball, orange, globe

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Cube

6 faces, 12 edges, 8 vertices

Examples: dice, ice cube, Rubik's cube

⬛

Rectangular Prism

6 faces, 12 edges, 8 vertices

Examples: box, book, brick

🔨

Cylinder

2 flat faces, 1 curved surface

Examples: can, toilet roll, drum

▲

Cone

1 flat face, 1 curved surface

Examples: ice cream cone, party hat

△

Triangular Prism

5 faces, 9 edges, 6 vertices

Examples: Toblerone box, tent

Faces, Edges, and Vertices

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Face

A flat or curved surface on a 3D shape. A cube has 6 square faces.

⎯

Edge

A straight line where two faces meet. A cube has 12 edges.

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Vertex

A corner where edges meet. A cube has 8 vertices. (More than one: vertices.)

Key Vocabulary

3D shape — a solid object with three dimensions: length, width, and height

face — a flat or curved surface of a 3D shape

edge — where two faces of a 3D shape meet

vertex — a corner point where edges meet (plural: vertices)

Lesson Summary

✓3D shapes are solid objects. Common ones include sphere, cube, cylinder, cone, and rectangular prism.
✓Faces are flat surfaces. Edges are where faces meet. Vertices are the corner points.
✓A cube has 6 faces, 12 edges, and 8 vertices.
✓A sphere has no flat faces, no edges, and no vertices — just one curved surface.