neliöprisma

A neliöprisma, or square prism, is a three-dimensional geometric shape. It is a type of prism where the bases are squares. Specifically, it is a hexahedron, meaning it has six faces. Two of these faces are congruent squares, which are parallel to each other and form the bases of the prism. The other four faces are rectangles, connecting the corresponding sides of the square bases. If these rectangular faces are also squares, then the neliöprisma is a special case known as a cube.

The key characteristics of a neliöprisma include its parallel square bases and rectangular sides. The edges where the rectangular faces meet are perpendicular to the bases. This perpendicularity defines it as a right prism. An oblique neliöprisma would have its side faces as parallelograms, not necessarily rectangles, with the connecting edges not perpendicular to the bases. However, the term "neliöprisma" commonly refers to the right square prism.

The volume of a neliöprisma is calculated by multiplying the area of its square base by its height. If the side length of the square base is 's' and the height of the prism is 'h', the volume (V) is given by the formula V = s²h. The surface area is the sum of the areas of its two square bases and its four rectangular sides. For a right neliöprisma with base side 's' and height 'h', the surface area (SA) is calculated as SA = 2s² + 4sh.