Sanu power

This document defines and provides key characteristics of different quadrilaterals including rectangles, squares, parallelograms, rhombuses, trapezoids, and isosceles trapezoids. It states that a quadrilateral is a closed figure with four sides and four angles, then describes rectangles as having opposite equal and parallel sides and right angles, squares as having equal sides and right angles, and parallelograms as having opposite equal and parallel sides with opposite equal angles and diagonals that bisect each other. It further defines rhombuses, trapezoids, and isosceles trapezoids based on their side lengths and angles.