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Geometry C.4 Vocab

QuestionAnswer
A Transformation that uses a line like a mirror to reflect a figure. Reflection
A line that acts like a mirror line of reflection
a transformation involving a translation followed by a reflection. Glide reflection
A figure in the plane has line symmetry when the figure can be mapped onto itself by a reflection in a line. line symmetry
A line of reflection that maps a figure onto itself. Line of Symmetry
A transformation in which a figure is turned about a fixed point. Rotation
The fixed point in a rotation. Center of Rotation
The angle that is formed by rays drawn from the center of Rotation to a point and its image. angle of rotation
A figure has rotational symmetry when the figure can be mapped onto itself by a rotation of 180 degrees or less about the center. rotational symmetry
The center of rotation in a figure that has rotational symmetry. Center of symmetry
A quantity that has both direction and magnitude and is represented in the coordinate plane by and arrow drawn from one point to another. Vector
The starting point of a vector. Initial point
Then ending point of a vector. Terminal point
The Horizontal change from the starting point of a vector to the ending point. Horizontal component
The vertical change from the starting point of a vector to the ending point. Vertical Component
A form of a vector that combines the horizontal and vertical components. Component form
A function that moves or changes a figure in some way to produce a new figure. Transformation
A figure that results from the transformation of a geometric figure. Image
The original figure before a transformation. Pre-image
A transformation that moves every point of a figure the same distance and the same direction. Translation
A transformation that preserves length and angle measure. Rigid Motion
The combination of two or more transformations to form a single transformation. Composition of transformations
Created by: Isaacmj2783
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