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10. A triangle undergoes a glide reflection. Is it possible for the sides of thetriangle to change length during this process? Explain your reasoning.

User Undisp
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Answer: No. Recall that a glide reflection consists of a reflection over a line and then a translation along that line, combined into a single operation since the glide reflection can be seen as a reflection combined with a translation, and both of that transformations are isometric transformations, then the image of the triangle under a glide reflection must have the same lengths.

User Shashank Rawat
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