4.8.1
3D Shapes
3D Shapes
3D Shapes
On a 3D shape, flat surfaces are called faces, the lines where two surfaces meet are called edges and the corners where two edges meet are called vertices. Edges can be curved or straight.


Cuboid
Cuboid
- A cuboid has 6 faces which are all rectangles. It has 12 edges and 8 vertices. Its edges are not necessarily all the same length.


Cube
Cube
- A cube is a special kind of cuboid whose edges are all the same length so that its 6 faces are identical and all squares.


Prism
Prism
- A prism is a 3D shape with flat faces and an identical cross-section throughout the length of the shape.
- A prism has two end faces called bases then one face for each side of the base.


Pyramid
Pyramid
- This is a square based pyramid.
- Square based pyramids have 5 faces, 5 vertices and 8 edges.
- Triangular based pyramids have 4 faces, 4 vertices and 6 edges.


Cylinder
Cylinder
- A cylinder has a flat face at each end called a base, and a curved surface along its length.
- It has two edges (one around each base) and no vertices.


Cone
Cone
- A cone has 2 surfaces, 1 edge and 1 vertex.
- The top of a cone is called the apex.


Sphere
Sphere
- A sphere is a perfectly round 3D shape.
- It has one curved surface and no edges or vertices.
1Numbers
1.1Integers
1.3Decimals
1.4Powers & Roots
1.5Set Language & Notation
1.6Percentages
1.7Ratio & Proportion
2Equations, Formulae & Identities
2.1Algebraic Manipulation
2.2Expressions & Formulae
2.3Linear Equations
2.4Quadratic Equations
2.5Proportion
3Sequences, Functions & Graphs
3.1Sequences
3.3Graphs
3.4Common Graphs
4Geometry
4.1Angles, Lines & Triangles
4.2Polygons
4.5Circle Properties
4.6Trigonometry & Pythagoras’ theorem
4.7Mensuration of 2D Shapes
4.83D Shapes & Volume
5Vectors & Transformation Geometry
6Statistics & Probability
6.1Statistical Measures
6.2Graphical Representation of Data
Jump to other topics
1Numbers
1.1Integers
1.3Decimals
1.4Powers & Roots
1.5Set Language & Notation
1.6Percentages
1.7Ratio & Proportion
2Equations, Formulae & Identities
2.1Algebraic Manipulation
2.2Expressions & Formulae
2.3Linear Equations
2.4Quadratic Equations
2.5Proportion
3Sequences, Functions & Graphs
3.1Sequences
3.3Graphs
3.4Common Graphs
4Geometry
4.1Angles, Lines & Triangles
4.2Polygons
4.5Circle Properties
4.6Trigonometry & Pythagoras’ theorem
4.7Mensuration of 2D Shapes
4.83D Shapes & Volume
5Vectors & Transformation Geometry
6Statistics & Probability
6.1Statistical Measures
6.2Graphical Representation of Data
Unlock your full potential with Seneca Premium
Unlimited access to 10,000+ open-ended exam questions
Mini-mock exams based on your study history
Unlock 800+ premium courses & e-books