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Chapter 7 vocab
Chapter 7 - 7.1-7.6 vocabulary
| Question | Answer |
|---|---|
| isometry | a transformation that oreserves lengths and angle measures. aka rigid transformation |
| transformation | the operation that maps, or moves a preimage onto an image |
| reflection | a type of transformation that uses a line that acts like a mirror called the line of reflection with an image reflected in the line |
| reflection theorem | a reflection is an isometry |
| line of symmetry | a line that a figure in the plane has if the figure can be mapped onto itself by a reflection in a line |
| rotation | a type of transformation in which a figure is turned about a fixed point called the center of rotation. rays drawn from the center of rotation to a point and its image form an angle called the angle of rotation |
| rotation theorem | a rotation is an isometry |
| rotational symmetry | a figure in the plane has rotational symmetry if the figure can be mapped onto itself |
Created by:
jumpthemoon
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