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 Interactive Checkpoint
 Isometry:  A transformation that keeps the size and shape of geometric figures the same.

Determine if the following descriptions represent isometries.

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Graded Response

 a) sliding a book across a table  a)
 b) a mirror image  b)
 c) a set of a person's footprints  c)
 d) scaling a model to a hand size figurine  d)
 e) baking bread in the oven  e)