ristkülikukujuline

Ristkülikukujuline is Estonian for rectangular-shaped. It is used to describe objects, layouts, or forms that have the shape of a rectangle.

In geometry, a rectangle is a four-sided polygon with opposite sides parallel and equal in length, and with all interior angles equal to 90 degrees. A rectangle is a specific type of parallelogram, meaning its opposite sides are parallel and equal, and its diagonals are equal in length and bisect each other. If the side lengths are a and b, the area is a × b and the perimeter is 2(a + b). The length of a diagonal is sqrt(a^2 + b^2).

Ristkülikukujuline can be applied to two-dimensional shapes (like floor plans, screens, or pictures) and to three-dimensional objects when referring to their base or cross-section. In technical contexts, it is common to describe components, modules, or surfaces as rectangular-shaped for clarity in manufacturing, design, and architecture.

A square is a special case often considered a type of rectangle; mathematically, a square is a rectangle with all sides equal. In everyday Estonian usage, some contexts may distinguish square (ruutu) from rectangle, but the term ristkülikukujuline can sometimes be used broadly to denote rectangular forms, including near-squared shapes.

Overall, ristkülikukujuline conveys a simple, widely recognizable geometric form that appears across design, construction, and visualization contexts.