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Unit 2 Math 8

Geometric Figures: Transformations, Similarity and Angle Relationships

TermDefinition
Alternate Exterior Angles When two lines are cut by a transversal, a pair of angles on opposite sides of the transversal and outside the two lines
Alternate interior angles When two lines are cut by a transversal, a pair of angles on opposite sides of the transversal and between the two lines
Center of dilation A fixed point from which a figure is dilated
Corresponding angles Angles in the same relative position when two lines are cut by a transversal
Dilation A transformation that makes a scale copy of a figure. It is a proportional shrinking or enlargement of a figure
Exterior angles When you extend one side of a polygon, the angle between the extended side and the adjacent side. This angle forms a linear pair with the adjacent interior angles of the polygon
Linear pair Two angles that are adjacent and supplementary
Proportional relationship When one quantity is a constant multiple of another quantitiy
Same side exterior angles When two lines are cut by a transversal, a pair of angles, on the same side of the transversal and outside the two lines
Same side interior angles When two lines are. Cut by a transversal, a pair of angles, on the same side of the transversal and between the two lines
Scale factor A factor that relates the corresponding side lengths of a figure and a scale copy of the figure
Sequence of transformations More than one transformation; the transformations can produce congruent or similar figures
Similar figures Having the same shape; produced if there is a sequence or rigid transformations and/or dilations that maps one figure onto the second
Transversal A line that cuts two or more lines; the lines cut may or may not be parallel
Created by: soniawilliams200
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