| A | B |
| congruent | describes two figures that are the same size and shape |
| symmetry | property of a figure that can be folded along a line so that the two parts match equally |
| line of symmetry | a line that divides a figure into halves that are mirror images of each other |
| similar | describes two figures that have the same shape but may be different sizes |
| slide | a movement of a figure to a new position without turning or flipping it |
| flip | a move that involves flipping a figure across an imaginary line |
| turn | a move that involves rotating a figure |
| model | a object that is a smaller copy of something that shows what it looks like |