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Earn +20 ptsQ: Is a dilation an isometry
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Continue Learning about Geometry
Which transformation is not an isometry?
Dilation.
Which transformation is not always an isometry?
Dilation
What is an isometry?
A isometry is a transformation where distance (aka size) is preserved. In a dilation, the size is being altered, so no, it is not an isometry.
What transformation is not an isometry?
Dilation - the image created is not congruent to the pre-image
Why is a dilation not an isometry?
Because the image is not the same size as the preimage. To do a dilation all you do is make the image smaller or larger than it was before.
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