Term
| 90 rotation counterclockwise about the origin |
|
Definition
|
|
Term
| 180 rotation counterclockwise about the origin |
|
Definition
|
|
Term
| 270 rotation counterclockwise about the origin |
|
Definition
|
|
Term
| Reflection across the line y=x |
|
Definition
|
|
Term
| Reflection across the y-axis |
|
Definition
|
|
Term
| Reflection across the x-axis |
|
Definition
|
|
Term
| Dilation centered at the origin where the scale factor is k |
|
Definition
|
|
Term
|
Definition
| A mapping for which the original figure and its image are congruent, has a scale factor of 1 |
|
|
Term
|
Definition
| Symmetry in a 3-D figure that occurs if the figure can be mappped onto itself by a rotation between 0 and 360 degrees in a line |
|
|
Term
|
Definition
| Symmetry in a 3-D figure that occurs if the figure can be mapped onto itself by a reflection in a plane |
|
|
Term
|
Definition
| The angle of rotation that is the smallest angle through which a figure can be rotated so that it maps onto itself. It is found by dividing 360/order. |
|
|
Term
|
Definition
| The number of times a figure maps onto itself as it rotates from 0 to 360 |
|
|
Term
| How many lines of symmetry does a regular n-gon have? |
|
Definition
| n lines of symmetry. A regular polygon has the same number of lines of symmetry as it does sides. |
|
|
Term
| What is the angle of rotation for a figure reflected in two lines that intersect to form an angle of x degrees? |
|
Definition
|
|
