Definition of Rigid Transformations (Developing)

Perpendicular and Parallel
Before we begin the activity, take two minutes to remind yourself the definition of [b]"perpendicular"[/b] and [b]"parallel" [/b]lines.
Translation (any BLUE points can be moved)
Question 1
As you experiment with translation, record your initial observations. CHALLENGE: use "parallel", "perpendicular", and/or "distance" in your answers.
Reflection (any BLUE points can be moved)
Question 2
As you experiment with reflection, record your initial observations. CHALLENGE: use "parallel", "perpendicular", and/or "distance" in your answers.
Rotation (any BLUE points can be moved)
Question 3
As you experiment with rotation, record your initial observations. CHALLENGE: use "parallel", "perpendicular", and/or "distance" in your answers.
Question 4
Why do mathematicians call these transformations "rigid"?[br][br](You may look up the definition of rigid if you do not know its meaning.)
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Information: Definition of Rigid Transformations (Developing)