In the below activity the blue shape has been reflected in green line to produce the purple shape.
What do you notice about the position of the purple shape in relation to the line of reflection when compared to the position of the blue shape?
Move the green points to change the line of reflection. What has happened to the position of the purple shape? What will happen to the purple shape if you move the red vertex of the blue shape?
Use the pen tool to draw the reflection of the green shape in each of the orange, brown and red lines. How did you do it?
Now move the blue shape over the green shape, and move the green line over each of the orange, brown and red lines to check your answers.
What information do you need to fully describe a reflection?
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