Answer:
A glide reflection is a type of transformation in geometry that combines a reflection with a translation. It involves reflecting a figure across a line and then translating it parallel to that line.
To map triangle DEF onto D'E'F' using a glide reflection, you would first reflect triangle DEF across a line (let's say line m) to get the reflected triangle. Then, you would translate the reflected triangle parallel to line m.
So, in the context of your question, glide reflection would involve reflecting triangle DEF across a line and then translating the reflected triangle to match D'E'F'.
A typical diagram illustrating a glide reflection might look like this:
Before Transformation After Glide Reflection
D D'
/. \ |. \
/ \ | \
/_____\ |_____\
E F F' E'
(Original Figure) (Transformed Figure)
