4.1.1

Geometry Basics

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Geometry Basics

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Vertices and edges

  • The corners of a polygon are called vertices and the sides are called edges.
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Plane

  • A plane is a flat 2 dimensional surface like the surface of a table.
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Parallel lines

  • If two lines are parallel they point in exactly the same direction and will never meet.
  • Parallel lines are indicated by drawing matching arrows on the lines.
  • If there are two different pairs of parallel lines then different arrows are used for each pair.
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Perpendicular lines

  • Two lines are perpendicular if the angle between them is a right angle.

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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