Identify the relationship between the preimage and image following the given transformation.

Transformation Congruent Similar
Rotation

Translation

Dilation

Reflection

Translation then reflection

1 answer

To identify the relationship between the preimage (original figure) and image (transformed figure) under the given transformations, we can classify each one as either congruent or similar:

  1. Rotation:

    • Relationship: Congruent
    • Explanation: Rotations preserve the shape and size of the figure, resulting in a congruent image.
  2. Translation:

    • Relationship: Congruent
    • Explanation: Translations move the figure without altering its shape or size, resulting in a congruent image.
  3. Dilation:

    • Relationship: Similar
    • Explanation: Dilations change the size of a figure while preserving its shape, resulting in a similar image (the angles remain the same, but the lengths of the sides change).
  4. Reflection:

    • Relationship: Congruent
    • Explanation: Reflections flip the figure over a line, preserving the shape and size, and thus resulting in a congruent image.
  5. Translation then Reflection:

    • Relationship: Congruent
    • Explanation: The combination of translation and reflection involves moves that maintain the shape and size of the figure, resulting in a congruent image.

So, to summarize the relationships:

  • Rotation: Congruent
  • Translation: Congruent
  • Dilation: Similar
  • Reflection: Congruent
  • Translation then Reflection: Congruent