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# SHMS 8th Math Vocab1

### SHMS 8th Grade Math Vocab 1

TermDefinition
Alternate Exterior Angles Congruent pairs of angles formed when a third line (a transversal) crosses two other lines. These angles are on opposite sides of the transversal and are outside the other two lines.
Alternate Interior Angles Congruent pairs of angles formed when a third line (a transversal) crosses two other lines. These angles are on opposite sides of the transversal and are in between the other two lines.
Angle of Rotation The degree of rotation about a fixed point.
Congruent Figures Figures that have the same size and shape.
Corresponding Sides Sides that have the same relative positions in geometric figures.
Corresponding Angles Congruent angles that have the same relative positions in geometric figures.
Dilation Transformation that changes the size of a figure, but not the shape.
Linear Pair Adjacent, supplementary angles. Excluding their common side, they form a straight line.
Reflection A transformation that "flips" a figure.
Rotation A transformation that turns a figure about a fixed point through a given angle and a given direction.
Same-Side Interior Angles Supplementary pairs of angles formed when a third line (a transversal) crosses two other lines. These angles are on the same side of the transversal and are between the other two lines.
Same-Side Exterior Angles Supplementary pairs of angles formed when a third line (a transversal) crosses two other lines. These angles are on the same side of the transversal and are outside the other two lines.
Scale Factor The ratio of any two corresponding lengths of the sides of two similar figures.
Similar Figures Figures that have the same shape but not necessarily the same size.
Transformation The mapping, or movement, of all the points of a figure in a plane according to a common operation.
Translation A transformation that "slides" each point of a figure the same distance in the same direction.
Transversal A line that crosses two or more lines.
Created by: hbogue

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