A three-dimensional rectangular object is called a "cuboid," which means "similar to a cube" or "resembling a cube." It is also referred to as a "rectangular parallelepiped."
A cuboid contains six plane surfaces, with all of its vertices forming 90-degree angles. Two of a cuboid's properties are volume and surface area. The formula for calculating the volume is V = lwh, where "V" denotes the volume, "l" indicates the length, "w" represents the width and "h" is the cuboid's height. The formula for the surface area is A = 2wl + 2lh + 2hw, where "A" is the surface area. A cuboid can be classified as a "prism" because it has a uniform cross-section along its length.Learn More
A three-dimensional trapezoid is also known as a trapezoidal prism. Three-dimensional figures, also referred to as 3D objects, are figures in space that have length, width and depth.Full Answer >
An irregular polygon is any polygon where all sides and all interior angles are not equal. An polygon can be an irregular polygon regardless of how many sides it has.Full Answer >
A rectangular prism has six faces or sides that are quadrilaterals, and they are arranged so that the figures meet at eight corners or vertices. The places where two sides meet are called edges, and rectangular prisms have 12 of them. The individual faces may be square or rectangular.Full Answer >
A seven-sided polygon is called a "heptagon." "Hepta-" or "hept-" is a prefix from the Greek word meaning "seven." In addition to having seven sides, the heptagon also has seven angles where the sides meet.Full Answer >