7 terms

Quadrilateral

A polygon with four sides

Parallelogram

A quadrilateral with opposite sides parallel

Rectangle

A parallelogram with four right angles

Rhombus

A quadrilateral in which all sides are equal

Square

A rhombus with four right angles

Trapezium

A quadrilateral which has a pair of parallel opposite sides

Kite

A quadrilateral which has two pairs of adjacent sides equal