Interactive applet
Transformations
Translate, reflect, rotate, and dilate a triangle. Compare the pre-image and image coordinates.
Hands-on lab
Move the triangle
Congruent or similar?
Rigid motion → congruent (size and shape preserved).
Missions
- Translate so A′ is at (4, 3)
- Dilate by 2
0/2 complete
Guided questions
Reflect over the y-axis. What happens to each x-coordinate?
Reflection
Which transformations preserve both size and shape? Which preserve only shape?
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