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# Muench Math Vocab G

TermDefinition
line of symmetry a line that divides a figure into two congruent halves that are mirror images of each other
parallelogram a quadrilateral with two pairs of parallel and congruent sides
plane a flat (2-D) surface that extends without end in all directions
rectangle a quadrilateral with two pairs of equal and parallel sides and four right angles
reflection a transformation creating a mirror immage of a figure on the opposite side of a line; flip
rotation a movement of a figure around a fixed point or axis; a turn
square a quadrilateral with four equal sides and four right angles
straight angle an angle that measures exactly 180 degrees (a line, in other words)
symmetric having the same size and shape on either side of a line
transformation something done to a geometric figure that produces a new figure (translations, reflections and rotations)
translation a movement of a figure along a straight line; a slide
Created by: kmuench