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Chapter 2

vocabulary

QuestionAnswer
vector A quantity that has both direction and magnitude
initial point The starting point of a vector
terminal point ending point of a vector
translation a transformation along a vector such that the segment joining a point and its image has the same length as the vector and is parallel to the vector
perpendicular lines lines that intersct at right angles
perpendicular bisectors a line perpendicular to the segment at the segments midpoint
Reflection reflection across line L maps point P to its image
Rotation A transformation around point P
angle of rotation The angle measure
center of rotation point around which a figure is rotated
symmetry In the transformation of a figure such that the image coincides with the preimage the image and the preimage have symmetry
Line of symmetry Each of the lines of a reflection
rotational symmetry A rotation maps the figure onto itself
angle of rotational symmetry greater than 0 but less than or equal to 180
Created by: user-1713612
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