This document defines and provides properties of seven shapes: rectangle, square, parallelogram, rhombus, trapezium, isosceles trapezium, and quadrilateral. It states that rectangles and squares have opposite sides that are equal and parallel and angles of 90 degrees, while parallelograms and rhombuses have opposite sides that are equal and parallel and opposite angles that are equal. Trapeziums have one pair of opposite sides that are parallel, and isosceles trapeziums have one pair of opposite sides that are parallel and non-parallel sides that are equal. Quadrilaterals have no defining properties listed.