3.1.2

Formula Triangles

Test yourself

Formula Triangles

To get any of the three quantities as the subject of the formula, cover it up in the formula triangle and put whatever remains on the other side of the triangle.

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Speed

  • Speed is the distance travelled per unit of time.
  • Common units for speed are kilometres per hour (km/h), miles per hour (miles/h or mph) and metres per second (m/s).
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Density

  • Density is the mass per unit of volume.
  • Common units for density are kg/m3 and g/cm3.
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Pressure

  • Pressure is force acting per unit of area.
  • Common units for pressure are N/m2 or pascals (Pa).

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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