Parallel - Types of lines that never touch, Perpendicular - Lines that cross and form a 90 degree angle, Intersecting - Type of lines that cross, Right - Type of angle that forms perpendicular lines, Acute - Angle that is less than 90 degrees, Obtuse - Angle that is bigger than 90 degrees, Straight - Angle that measures 180 degrees, Trapezoid - Shape that has exactly one set of parallel sides, Congruent - Same size same shape, Quadrilateral - Shape that has 4 sides,

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