nelikulmioiden
Nelikulmioiden is the Finnish word for quadrilaterals. A quadrilateral is a polygon with four edges and four vertices. The four edges are line segments and the four vertices are points where the edges meet. In Euclidean geometry, a quadrilateral is a closed shape formed by four straight line segments. The sum of the interior angles of any quadrilateral is always 360 degrees.
There are many different types of quadrilaterals, classified by the properties of their sides and angles. Some
Quadrilaterals are fundamental shapes in geometry and are found in many real-world applications, from architecture and