Geometry
a change in the size or position of a figure
Transformation
the original figure in a transformation
Preimage
a figure resulting from a transformation
Image
a movement of a figure along a straight line
Translation
a transformation of a figure that flips the figure across a line
Reflection
a line that a figure is flipped across to create a mirror image of the original figure
Line of Reflection
a transformation in which a figure is turned around a point
Rotation
having the same size and shape
Congruent
the point about which a figure is rotated
Center of Rotation
a line that intersects two or more lines
Transversal
angles in the same relative position in polygons with an equal number of sides
Corresponding Angles
a pair of nonadjacent angles that lie on opposite sides of the transversal and between the other two lines.
Alternate interior angles
a pair of angles that lie on opposite sides of the transversal and outside the other two lines.
Alternate exterior angles
a pair of angles on the same side of a transversal and between two lines intersected by a transversal
Same-side interior angles
a mathematical sentence that shows that two expressions are equivalent
Equation
a letter used to represent a quantity that can change
Variable
a pair of opposite congruent angles formed by intersecting lines
Vertical Angles
a(b-c) = ab - ac
Distributive Property
Divisor
the number that you are dividing in a division problem
the number to be divided by in a division problem
Dividend
a line that intersects two or more lines
Transversal
a transformation in which a figure is turned around a point
Rotation
a pair of angles on the same side of a transversal and between two lines intersected by a transversal
Same-side interior angles
a figure resulting from a transformation
Image
a mathematical sentence that shows that two expressions are equivalent
Equation