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αAπΣ∞∂θ√x²≠∫÷≤%+−½αβΔλφ³≈∑°
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Grade 8 · Unit 6~64 min3 topics · 3 videos

Transformations & Similarity

Move and resize figures on the coordinate plane. You'll perform rigid transformations, use dilations to create similar figures, and find angles formed when a transversal crosses parallel lines.

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Unit menu

Unit 6: Transformations & Similarity

Your progress

0 of 3 done0%

On this page

  • Topics
  • Objectives & vocabulary
  • Extra practice

Unit menu

Unit 6: Transformations & Similarity

Your progress

0 of 3 done0%

On this page

  • Topics
  • Objectives & vocabulary
  • Extra practice
αAπΣ∞∂θ√x²≠∫÷≤%+½αβΔ
Work through these

Topics in this unit

Each topic is a short page: read the walkthrough, watch the video, try the practice, then take a quick quiz. Go in order or jump to what you need.

1
Transformations

Slide, flip, and turn figures while keeping their size and shape.

  • 1 video
  • Practice
  • 2-question quiz
  • ~22 min
2
Dilations & Similarity

Resize figures by a scale factor to make similar shapes.

  • 1 video
  • Practice
  • 2-question quiz
  • ~22 min
3
Angles & Parallel Lines

Find angle measures when a transversal crosses parallel lines.

  • 1 video
  • Practice
  • 2-question quiz
  • ~20 min
αAπΣ∞∂θ√x²≠∫÷≤%+½αβΔ
Goals

Learning objectives

By the end of this unit, you should be able to:

  • ✓Perform translations, reflections, and rotations of figures.
  • ✓Understand that rigid transformations preserve size and shape (congruence).
  • ✓Use dilations to create similar figures and find scale factors.
  • ✓Find angles formed by parallel lines cut by a transversal.

Key vocabulary

Rigid transformation
A move that keeps size and shape: translation, reflection, or rotation.
Dilation
A transformation that resizes a figure by a scale factor.
Similar figures
Same shape, possibly different size; angles equal and sides proportional.
Transversal
A line that crosses two or more other lines.
αAπΣ∞∂θ√x²≠∫÷≤%+½αβΔ
More practice

External resources

Hand-picked links from Khan Academy and trusted worksheet libraries.

Khan Academy

Transformations & similarity practice

Open resource
Math Worksheets 4 Kids

Transformation worksheets

Open resource
αAπΣ∞∂θ√x²≠∫÷≤%+½αβΔ
←Previous · Unit 5Systems of Equations→Next up · Unit 7Pythagorean Theorem & Volume