GCSE Maths (AQA)

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Geometry and measures Properties and constructions

Transformations & Congruence

4:15 identify, describe and construct congruent and similar shapes, including on coordinate axes, by considering rotation, reflection, translation and enlargement; including fractional scale factors; including negative scale factors
Spec G7
Previous Translation Next Invariant Points
  • In reflection, rotation, or translation transformations, the object and the image are congruent.
  • Two shapes are congruent if all of the corresponding lengths and angles are equal to each other.
  • In a translation transformation, the shape is never changed and only moved.
  • In a rotation transformation, the order of sides and angles does not change during the rotation.
  • In a reflection transformation, the order of sides and angles is reversed, but the shape is still congruent.

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