Two circles are always :

1. congruent

2. similar

3. enlarged

4. concentric

In size transformation, the given figure is called an object and the resulting figure is called its :

1. pre-image

2. image

3. post-image

4. enlarge object

Each side of the resulting figure = …………… times the corresponding side of the given figure, where k is the scale factor.

1. k²

2. k

3. k³

4. 2k

The transformation is a/an ……………, if k = 1, where k is the scale factor of a given size transformation.

1. identity transformation

2. reduction

3. enlargement

4. map