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Similar Triangles

Two shapes are similar if they have the same shape but not the same size. For triangles, one of the following conditions must hold for the triangles to be similar:

All angles match

All angles match

  • All angles match up in pairs.
Two sides and angle

Two sides and angle

  • Any two sides proportional and the angle between them is the same.
Jump to other topics
1

Number

1.1

Place Value

1.2

Factors & Multiples

1.3

Operations

1.4

Fractions, Decimals & Percentages

1.5

Growth & Decay

1.6

Measurements & Units

1.7

Accuracy

2

Algebra

2.1

Introduction to Algebra

2.2

Graphs

2.3

Solving Equations

2.4

Sequences

3

Ratio, Proportion & Rates of Change

4

Geometry & Measures

4.1

Introduction to Geometry

4.2

Ruler & Compass Constructions

4.3

Perimeter & Area

4.4

Triangles, Quadrilaterals & Circles

4.5

Transformations

4.6

Triangle Formulae

4.7

3D Shapes

4.8

Vectors

5

Probability

6

Statistics

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