A three-dimensional orthotope is also **called** a right **rectangular prism**, **rectangular** cuboid, or **rectangular** parallelepiped. A special case of an n-orthotope, where all edges are equal length, is the n-**cube**.

Additionally, what is a rectangle called? A **rectangle** is a 2D shape in geometry, having 4 sides and 4 corners. Two sides are said to be parallel, when the distance between them remains the same at all points. Other names of the **rectangle**. Since all the angles of a **rectangle** are equal, we also call it an equiangular quadrilateral.

Similarly, what are 3d shapes called?

**Common 3D Shapes**

What is a 3d circle called?

Spheres are the most basic three dimensional objects that you will encounter in Astronomy. A sphere is defined much like a **circle** , except it is in 3 dimensions. Therefore, it is defined as the set of all points in space that are equally distant from a center.