| A | B |
|---|
| Angle of Rotation | The amount of rotation about a fixed point. |
| Congruent Figures | Figures that have the same size and shape. |
| Corresponding Sides | Sides that have the same relative positions in geometric figures. |
| Corresponding Angles | Angles that have the same relative positions in geometric figures. |
| Dilation | A transformation that moves each point along the ray through the point emanating from a fixed center, and multiplies distances from the center by a common scale factor. |
| Reflection | A transformation that "flips" a figure over a line of reflection. |
| Reflection Line | A line that is the perpendicular bisector of the segment with endpoints at a pre-image point and the image of that point after a reflection. |
| Rotation | A transformation that turns a figure about a fixed point through a given angle and a given direction. |
| Scale Factor | The ratio of any two corresponding lengths of the sides of two similar figures. |
| Similar Figures | Figures that have the same shape but not necessarily the same size |
| Transformation | The mapping, or movement, of all the points of a figure in a plane according to a common operation. |
| Translation | A transformation that "slides" each point of a figure the same distance in the same direction. |
