4.1.2

Geometry Basics 2

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Geometry Basics

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Line of symmetry

  • A line of symmetry of a polygon (shape) is a line which divides the shapes into two halves which are mirror images of each other.
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Order of rotation

  • The order of rotational symmetry of a polygon (shape) is the number of times you can rotate it and have it look exactly the same.
  • This rectangle has an order of rotation of 2.

Jump to other topics

1Number

1.1Using Numbers

1.2Fractions, Decimals & Percentages

1.3Powers & Roots

1.4Accuracy

2Algebra

2.1Introduction to Algebra

2.2Manipulating Algebra

2.3Proofs & Functions

2.4Straight Line Graphs

2.5Common Graphs

2.6Transformations & Tangents

2.7Properties of Graphs

2.8Solving Equations

2.9Inequalities

2.10Sequences

3Ratio

4Geometry

4.1Introduction to Geometry

4.2Triangles & Quadrilaterals

4.3Transformations

4.4Circle Basics

4.5Circle Theorems

4.6Measurements & Units

4.7Calculating Area

4.8Triangle Formulae

4.93D Shapes

4.10Vectors

5Probability

6Statistics

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