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Mathematics 20 Online
OpenStudy (anonymous):

A preimage and an image are congruent in an isometry. Always? Sometimes? Never?

OpenStudy (mathteacher1729):

I usually don't recommend wikipedia math articles... but this one has some very nice illustrations: http://en.wikipedia.org/wiki/Euclidean_plane_isometry

OpenStudy (anonymous):

How would i find my answer in the article?

OpenStudy (mathteacher1729):

Hm. Do you know what "preimage" , "image" , "congruent" and "Isometry" mean? (which, if any. of those are unclear?)

OpenStudy (anonymous):

isometry

OpenStudy (anonymous):

an Isometry preserves distance the answer is "Always"

OpenStudy (anonymous):

thank you.

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