REVISION NOTES

IGCSE Edexcel Mathematics A

4.8 Trigonometry and Pythagoras’ Theorem

4.8.1 Know, understand and use Pythagoras’ theorem in two dimensions

edexcel_igcse_mathematics a_topic 32_trigonomentry and pythagoras' theorem_001_Pythagoras Theorem

4.8.2 Know, understand and use sine, cosine and tangent of acute angles to determine lengths and angles of a right-angled triangle

4.8.3 Apply trigonometrical methods to solve problems in two dimensions

4.8.4 Understand and use sine, cosine and tangent of obtuse angles (Higher Tier Only)

4.8.5 Understand and use angles of elevation and depression (Higher Tier Only)

edexcel_igcse_mathematics a_topic 32_trigonomentry and pythagoras' theorem_002_Angle of Elevation and Depression

4.8.6 Understand and use the sine and cosine rules for any triangle (Higher Tier Only)

4.8.7 Use Pythagoras’ theorem in three dimensions (Higher Tier Only)

edexcel_igcse_mathematics a_topic 32_trigonomentry and pythagoras' theorem_003_Pythagoras Theorem in 3D

4.8.8 Understand and use the formula ½ab sin C for the area of triangle (Higher Tier Only)

4.8.9 Apply trigonometrical methods to solve problems in three dimensions, including finding the angle between a line and a plane (Higher Tier Only)

edexcel_igcse_mathematics a_topic 32_trigonomentry and pythagoras' theorem_004_Trigonometry Theorem in 3D
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1.1 Integers

1.2 Fractions

1.3 Decimals

1.4 Powers and Roots

1.5 Set Language and Notation

1.6 Percentages

1.7 Ratio and Proportion

1.8 Degree of Accuracy

1.9 Standard Form

1.10 Applying Numbers

1.11 Electronic Calculator

2.1 Use of Symbols

2.2 Algebraic Manipulation

2.3 Expressions and Formulae

2.4 Linear Equations

2.5 Proportion (Higher Tier Only)

2.6 Simultaneous Linear Equations

2.7 Quadratic Equations

2.8 Inequalities

3.1 Sequences

3.2 Function Notation (Higher Tier Only)

3.3 Graphs

3.4 Calculus (Higher Tier Only)

4.1 Angles, Lines & Triangles

4.2 Polygons

4.3 Symmetry

4.4 Measures

4.5 Construction

4.6 Circle Properties

4.7 Geometric Reasoning

4.8 Trigonometry and Pythagoras’ Theorem

4.9 Mensuration of 2D Shapes

4.10 3D Shapes and Volumes

4.11 Similarity

5.1 Vectors (Higher Tier Only)

5.2 Transformation Geometry

6.1 Graphical Representation of Data

6.2 Statistical Measures

6.3 Probability

7.1 Appendix 1: Foundation Tier Formula Sheet (Given)

7.2 Appendix 2: Foundation Tier Formula Sheet (To Memorise)

7.3 Appendix 3: Higher Tier Formula Sheet (Given)

7.4 Appendix 4: Higher Tier Formula Sheet (To Memorise)

7.5 Appendix 5: Notation

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