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3D objects Saturday, 17 November 2018.

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Presentation on theme: "3D objects Saturday, 17 November 2018."— Presentation transcript:

1 3D objects Saturday, 17 November 2018

2 Prisms An edge face A Vertex
Definition: A prism is a solid in which the cross-sectional area remains the same. In other words the shape of the end is the same shape and size throughout the solid. Definition: The faces are the sides on a solid An edge is where two faces meet. In other words the line drawn to represent a fold in the shape. Hidden edges are drawn with a dotted line. A Vertex is the name given for the corners. In other words where a number of edges meet. An edge A Vertex face

3 6 12 8 1. Cube Properties Number of faces = Number of edges =
Number of vertices = Has planes of symmetry Has rotational symmetry from a given axes. 6 12 8

4 Planes of symmetry

5 6 12 8 2. Cuboid Properties Number of faces = Number of edges =
Number of vertices = Has planes of symmetry Has rotational symmetry from a given axes. 6 12 8

6 Planes of symmetry

7 5 9 6 3. Triangular-based prism Properties Number of faces =
Number of edges = Number of vertices = Has planes of symmetry Has rotational symmetry from a given axes. 5 9 6

8 Planes of symmetry

9 3 2 4. Cylinder Properties Number of faces = Number of edges =
Has planes of symmetry Has rotational symmetry from a given axes. 3 2

10 Planes of symmetry

11 Isometric paper Example Draw a cube with side 5cm

12 Example Using the isometric paper draw a cuboid with dimensions 3cm by 4cm by 6cm


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