Question

A preimage and an image are congruent in an isometry.

Always?
Sometimes?
Never?

Answer 1

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

Answer 2

How would i find my answer in the article?

Answer 3

Hm.

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

Answer 4

isometry

Answer 5

an Isometry preserves distance

the answer is "Always"

Answer 6

thank you.