Dilation in Math: Definition & Meaning


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question 1 of 3

Point A (-10, 4) is dilated by a scale factor of .5. What are the coordinates for A'?

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1. Point B (6, 3) is dilated by a scale factor of 5/3. What are the coordinates for B'?

2. Triangle ABC is dilated with a scale factor of -3. Fully describe the relationship between triangle ABC and triangle A'B'C'.

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About This Quiz & Worksheet

Dilation can affect multiple forms of mathematical expression, and this quiz/worksheet will help you test your understanding of that effect as seen in various mathematical contexts.

Quiz & Worksheet Goals

In these assessments you'll be tested on the effect of dilation on:

  • Point coordinates
  • Triangle size and position
  • Segment length

Skills Practiced

This quiz and worksheet allow students to test the following skills:

  • Problem solving - use acquired knowledge to solve practice problems involving mathematical dilation
  • Making connections - use understanding of the concept of dilation in different mathematical contexts
  • Distinguishing differences - compare and contrast the effect of dilation on various forms of mathematical expression

Additional Learning

To learn more about dilation, review the accompanying lesson on Dilation in Math: Definition & Meaning. This lesson covers the following objectives:

  • Define dilation and understand its significance in math
  • Define scale factor and understand its relation to dilation
  • Understand the effect of dilation both on and off a coordinate plane