McDougal Littell Vocab.
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| The new figure that results from the transformation of a figure in a plane. | image
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| The original figure in the transformation of a figure in a plave. | preimage
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| The aperation that maps, or moves, a preimage onto an image. Three basics are reflections, rotations and translations. | transformation
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| A transformation that preserves lengths. | isometry
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| A type of transformation that uses a line that acts like a mirror. | reflection
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| Tye of transformation that uses aline that acts like a mirror. | line of reflection
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| A line that a figure in the plane has if the figure can be mapped onto itself by reflection in the line. | line of symmetry
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| A type of transformation in which a figure is turned about a fixed joint. | rotation
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| A fixed point in which a figure is turned around. | center of rotation
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| The angle formed when rays are drawn from the center of rotation to a point and its inage. | angle of rotation
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| A figure in the plane hae rotational symmetry if the figure can be mapped onto itself by a rotation of 180 degrees of less. | rotational symmetry
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| A quantity that has both direction and magnitude, and is represented by an arrow drawn between two points. | vector
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| The starting point of a vector. | initial point of a vector
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| The ending point of a vector. | terminal point of a vector
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| The form of a vector that combines the horizontal and vertical components of the vector. | component form
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| The result when two or more transformations are combined to produce a single transformation. | composition of transformation
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| A pattern that extends to the left and right in such a way that the pattern can be mapped onto itself by a horizontal translation. | frieze pattern or border pattern
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