Yes
Yes, due to the definition of congruent figures.
translation
A translation, a reflection and a rotation
only if the mirror is flat
Figures are congruent if and only if they are related by a translation, reflection, or rotation, or some combination of these transformations.
It will be as you term it 'horizontal stretch' in which the figure is enlarged or reduced in size.
No, a figure and its reflection image are congruent. It is like our reflections in a mirror. Hope I answered your question!
A similar figure has the same interior angles as a congruent figure but its sides are in proportion to a congruent figure.
The reflection in a line will be another congruent circle.
When u rotated a figure 180 is the reflection the same
A square is not a solid figure at all. It's a flat figure, with four congruent faces and four congruent angles.