1. Maths Unit 20 – Visualisation, Nets and Isometric Drawing
Plans and Elevations
Isometric Drawings
Key words and definitions
Cube – a box shaped solid that has 6 identical square faces.
Cuboid – a box shaped solid that has 6 faces, some or all of the faces are made of rectangles
Prism – a solid shape which has 2 parallel ends and flat faces.
Triangular Prism– a solid shape which has 2 parallel triangular ends and flat faces.
Cylinder – a solid shape which has 2 parallel circular ends and flat faces.
Square based pyramid – a solid with a square base and 4 identical triangular sides which meet at a vertex at the top of the shape
Tetrahedron – a solid with 4 faces
Face – individual surfaces of a solid shape
Vertex – a point where 2 or more lines meet (corner)
Vertices – the plural of vertex is vertices
Edge – a line which joins 2 vertices
Plan – a drawing of an object as viewed from above (birds-eye view).
Elevation – a drawing of an object from the front or side.
Isometric drawing – a 2D representation of a solid
Net - A pattern that you can cut and fold to make a model of a solid shape.