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Www.numeracysoftware.com Properties of 3-D Shapes Cuboid Cube Prism Triangular Prism Hexagonal Prism Cylinder Cone Sphere Square-Based Pyramid Tetrahedron.

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Presentation on theme: "Www.numeracysoftware.com Properties of 3-D Shapes Cuboid Cube Prism Triangular Prism Hexagonal Prism Cylinder Cone Sphere Square-Based Pyramid Tetrahedron."— Presentation transcript:

1 Properties of 3-D Shapes Cuboid Cube Prism Triangular Prism Hexagonal Prism Cylinder Cone Sphere Square-Based Pyramid Tetrahedron Octahedron Dodecahedron Icosahedron

2 Cuboid Six faces which are all rectangles. Key Feature Planes of Symmetry? If the cuboid has no square faces then it has... Faces6 Corners8 Edges12 Is a Cuboid a Prism?Prism Yes, because it has a rectangular cross-section throughout its length. If two opposite faces are square then it has... three. five.

3 Cube Six faces which are all squares. Key Feature Planes of Symmetry? Nine Faces6 Corners8 Edges12 Is a Cube a Prism?Prism Yes, because it has a square cross-section throughout its length.

4 Prism The shape of its cross-section is the same throughout its length. Key Feature Planes of Symmetry? It depends what sort of prism it is. Faces, Corners, Edges? It depends what sort of prism it is. Examples of prisms include triangular prism, hexagonal prism, cuboid, cube and cylinder.triangular prismhexagonal prism cuboidcubecylinder

5 Triangular Prism A prism with a triangular cross-section.prism Key Feature Planes of Symmetry? If the triangle is equilateral then it has... Faces5 Corners6 Edges9 four. If the triangle is isosceles then it has... If the triangle is scalene then it has... two. one.

6 Hexagonal Prism A prism with a hexagonal cross-section.prism Key Feature Planes of Symmetry? If it’s a regular hexagon then it has seven. Faces8 Corners12 Edges18

7 Cylinder A prism with a circular cross-section.prism Key Feature Planes of Symmetry? Infinite Faces, Corners and Edges The normal definitions of faces, corners and edges are not appropriate for a cylinder.

8 Cone The point of the cone is directly above the centre of the circular base. Key Feature Planes of Symmetry? Infinite Faces, Corners and Edges The normal definitions of faces, corners and edges are not appropriate for a cone.

9 Sphere Every point on the surface of the sphere is the same distance from the centre. Key Feature Planes of Symmetry? Infinite Faces, Edges and Corners The normal definitions of faces, corners and edges are not appropriate for a sphere

10 Square-Based Pyramid A shape with a square base and triangular sides that meet at a point. Key Feature Planes of Symmetry? Four Faces5 Corners5 Edges8

11 Tetrahedron Four faces which are all equilateral triangles. Key Feature Planes of Symmetry? Six Faces4 Corners4 Edges6

12 Octahedron Eight faces which are all equilateral triangles. Key Feature Planes of Symmetry? Nine Faces8 Corners6 Edges12

13 Dodecahedron Twelve faces which are all regular pentagons. Key Feature Planes of Symmetry? Fifteen Faces12 Corners20 Edges30

14 Icosahedron Twenty faces which are all equilateral triangles. Key Feature Planes of Symmetry? Fifteen Faces20 Corners12 Edges30

15 END OF PRESENTATION


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