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Quadrilaterals

QuestionAnswer
POLYGON A closed, plane geometric figure made of straight line segments. No curves. No openings.
QUADRILATERAL A polygon with 4 straight sides. Examples: parallelogram, rectangle, square, rhombus, trapezoid
PARALLELOGRAM A quadrilateral with 2 pairs of parallel sides. Opposite sides are congruent (the same length).
RECTANGLE A quadrilateral and a parallelogram. It has 4 right angles and opposite sides that are parallel and congruent.
SQUARE A quadrilateral and a parallelogram. It is also a rectangle. It has 4 right angles and all 4 sides are congruent (the same length).
RHOMBUS A quadrilateral and a parallelogram. It has 4 congruent sides and opposite sides are parallel. Opposite angles are also congruent.
TRAPEZOID It is a quadrilateral. It has exactly one pair of parallel sides. It is NOT a parallelogram.
Created by: ajlight
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