1. What are congruent figures?
Congruent figures have the same shape and size.
2. Which points do not change under a reflection?
Points on the mirror line are invariant (do not change) under a reflection.
3. What is the connection between the mirror line and the line joining a point and its image?
They intersect (cross) at right angles.
4. What is an image?
An image is the result of carrying out a transformation such as a reflection on an object.
