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Geo Chapter 2 Vocab

Vocab from Chapter 2 Geo

TermDefinition
Vector a quantity that has both direction and magnitude
Initial Point the starting point of vector
Terminal Point the ending point of vector
Translation a transformation along a vector such that the segment joining a point and its vector has the same length as vector and is parallel to it.
Perpendicular Lines lines that intersect at right angles
Perpendicular Bisector a line segment that is perpendicular to another segment at that segment midpoint
Reflection a mirror image with P that is mapped across line L from its preimage P
Rotation a transformation around point P = center of rotation
Center of Rotation the point does not move during rotation
Angle of rotation all angles with vertex P formed by a point and its image have the same measure
Symmetry if a rigid motion exists that maps the figure onto itself
Line of Symmetry if a reflection maps the figure onto itself
Rotational Symmetry symmetry that occurs if you can take the image, rotate it, and place it on itself
Angle of Rotation Symmetry greater than 0 degrees but less than or equal to 180 degrees, is the smallest angle of rotation that maps a figure onto itself
Created by: user-1713631
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