Classifying Quadrilaterals

Vocabulary

• kite: a quadrilateral whose two pairs of adjacent sides are congruent and whose opposite sides are not congruent

• parallelogram: a quadrilateral in which both pairs of opposite sides are parallel

• polygon: in a plane, a closed figure formed from three or more line segments such that each segment intersects exactly two other segments, one at each endpoint, and no segments with a common endpoint are collinear

• quadrilateral: a polygon with four sides

• rhombus: a parallelogram with four congruent sides

• trapezoid: a quadrilateral with exactly one pair of parallel opposite sides