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Parallel Lines lines in the same plane that never intersect
Perpendicular lines intersecting at or forming right angles
Intersecting crossed or intersected in the form of an X
Reflection A transformation that "flips" a figure over a mirror or reflection line.
Translation A transformation that "slides" each point of a figure the same distance in the same direction.
Rotation A transformation that turns a figure about a fixed point at a given angle and a given direction.
Congruent same size, same shape
Similar same shape, but different size
Parallelgram a quadrilateral with 2 pairs of parallel sides
Polygon a closed plane figure bounded by straight sides
Rectangle a parallelogram with four right angles
Square (geometry) a plane rectangle with four equal sides and four right angles
edge The line segment where two faces of a solid figure meet.
Segment part of a line with two endpoints
ray a straight line extending from a point
line a straight path that extends without end in opposite directions
Corner the point where two lines meet or intersect
Vertex The common endpoint of an angle
edge The line segment where two faces of a solid figure meet.
Created by: MW4th