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unit 6 symmetry

math unit 6 symmetry

Asymmetrical Describes any figure that cannot be divided into two parts that are mirror images of each other. In other words, asymmetrical means "not symmetrical."
Axis of Symmetry
Line of Symmetry
Line of Symmetry A line that divides a figure into two parts, each of which is a mirror image of the other.
Reflectional Symmetry A figure has reflectional symmetry if, after reflecting the figure over a line, the figure lines back up with itself
Rotation A transformation that turns a figure about a fixed point at a given angle and a given direction.
Rotational Symmetry A figure has rotational symmetry if, after rotating it by an angle of 180 degrees or less about its center, the figure lines back up with itself.
Symmetry The property of a figure or expression that allows for parts of it to be interchanged without forcing a change in the whole
Axis of Symmetry A line that a figure can be folded over so that one-half of the figure matches the other half perfectly; a line about which a figure is symmetrical.
Line Symmetry Figures that match exactly when folded in half have line symmetry.
Created by: mcrippen