To divide into two congruent parts.
coordinate plane or grid
A plane formed by the intersection of a horizontal number line(x axis) and a vertical number line (y axis).
A trapezoid which has two congruent sides.
line of symmetry
A figure where one half is a mirror image of the other half.
One dimensional: a straight line.
Two numbers that identify a location on a coordinate grid. i.e.(2,-6), (1,4)
Any polygon that has congruent sides and angles.
A figure that can be rotated less than 360 degrees and coincide with the original figure.
The first number in an ordered pair, which moves right or left on the horizontal axis.
The second number in an ordered pair, which moves up or down on the vertical axis.