Glide vs (Reflection and Translation)
- Mark Sawula
A glide is an isometry in which an object is
- reflected across a mirror line, and then
- translated by a vector parallel to the line
- Is any combination of reflection and translation equivalent to a glide? Move the red vector so that the red 'ya' coincides with the cyan 'ya'. Are there any versions of the cyan vector for which this can't be done?
- What is the relationship between the red vector and the purple mirror line? Can you see how the position of the red vector depends on both the position of the purple line and the cyan vector?