Dörtgenlerdir

Dörtgenlerdir is a term that, when translated from Turkish, means "they are quadrilaterals." In geometry, a quadrilateral is a polygon with four edges (sides) and four vertices (corners). The sum of the interior angles of any quadrilateral is always 360 degrees. There are many different types of quadrilaterals, each with specific properties.

Common examples of quadrilaterals include squares, rectangles, parallelograms, rhombuses, trapezoids, and kites. A square has four equal sides and four right angles. A rectangle has opposite sides equal and four right angles. A parallelogram has opposite sides parallel and equal, but its angles are not necessarily right angles. A rhombus has four equal sides, but its angles are not necessarily right angles; it is a type of parallelogram. A trapezoid has at least one pair of parallel sides. A kite has two pairs of equal-length adjacent sides. The classification of quadrilaterals often involves identifying which of these properties are present. Understanding the relationships between these shapes is fundamental in Euclidean geometry.