College Geometry

Please use: geogebra.org/geometry

Glide Reflections Construct a generic, scalene triangle ABC in GeoGebra. Then explore what happens when it is translated by a vector and then reflected by a line parallel to the vector. Notice that this composition is not equivalent to a single translation, reflection or rotation. Hence, it is given a name (Glide Reflection) and added to the list of "basic" isometries. A" m B" C" C A Note that in the definition of a glide reflection the line of reflection must be parallel to the translation vector. Explore what happens when the reflection is not parallel #5 Why is the condition (that the line of reflection is parallel to the vector) included in the definition of a glide reflection