1. 4-7 Congruence Transformations

2. A transformation is an operation that maps an original geometric figure, the preimage, onto anew figure called the image.

3. The three main types of congruence transformations are reflections, translations, and rotations.

4. A reflection or a flip is a transformation over a line called the line of reflection. Each point of the preimage and its image are the same distance from the line of reflection.

5. A translation or a slide is a transformation that moves all points of the original figure the same distance in the same direction.

6. A rotation or a turn is a transformation around a fixed point called the center of rotation, through a specific angle, and in a specific direction. Each point of the original figure and its image are the same distance from the center.

7. You can verify that reflections, translations, and rotations of triangles produce congruent triangles using SSS.

8. Identify the type of congruence transformation shown as a reflection, translation, or rotation.

12. Identify each transformation and verify that it is a congruence transformation.

13. A(-4, 5) B(0, 2) C(-4, 2); X(-5, -4) Y(-2, 0) Z (-2, -4)