
1.  A figure in the plane has ________ symmetry if the figure can be mapped onto itself by a rotation of 180° or less. 
5.  The original figure in the transformation of a figure in a plane. 
7.  A transformation that preserves lengths. Also called rigid transformation. 
8.  The ending point of a vector. 
9.  A type of transformation in which a figure is turned about a fixed point. 
10.  The result when two or more transformations are combined to produce a single transformation. An example is a glide reflection. 
11.  The new figure that results from the transformation of a figure in a plane. 


2.  The operation that maps, or moves, a preimage onto an image. 
3.  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. Also called a border pattern. 
4.  A quantity that has both direction and magnitude, and is represented by an arrow drawn between two points. 
5.  Two lines that are coplanar and do not intersect. 
6.  ________ angles are two angles that are formed by two lines and a transversal and occupy corresponding positions. 