GCSE Maths (Edexcel)

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Combining Transformations

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Geometry and Measures Properties and Constructions

Combining Transformations

2:46 Combining Transformations
Spec G8
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  • Transformations can be combined by doing one transformation and then another
  • The three types of transformations that can be combined are reflection, rotation, and translation
  • Reflection is flipping an object across a mirror line
  • Rotation is turning an object a certain number of degrees about a point
  • Translation is moving an object without changing its size or orientation
  • To combine transformations, perform each transformation one after the other
  • In the example given, the first transformation is a reflection in the y axis
  • The second transformation is a rotation of 180 degrees about the center (0,0)
  • The final shape can be achieved by performing a reflection in the x axis using the mirror line of the original shape
  • It is important to know how to combine transformations and recognize equivalent combinations of transformations.

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