Real ones are!
Yes, we live in a three-dimensional world where objects have length, width, and height.
Gauss's law is used to calculate electric fields in three-dimensional systems, electric flux in two-dimensional systems, and charge distribution in one-dimensional systems.
Three-dimensional things are objects that have height, width, and depth. They exist in physical space and have the ability to be viewed from multiple angles. Examples include a cube, sphere, and pyramid.
The three basic dimensional qualities are length, width, and height. They are used to describe the physical size and shape of an object in space.
A three-dimensional object is called a solid.
No. Planes are 2-dimensional.
A polyhedron is a three-dimensional object, not two-dimensional.
Some planes have only one intercept.
Impossible to answer. By definition, rectangles are only two dimensional. By extrapolation... A three dimensional rectangle would be a rectangular cube; this would have six planes.
Lines! Yes, they are one-dimensional. Points are zero dimensional, planes are two-dimensional, and prisms and such are three dimensional.
Planes figures such as polygons are not solids. Solids are three-dimensional .
The difference is that two-dimensional shapes have a length and a width while three-dimensional shapes have a length, width, and depth. While some examples of two-dimensional shapes are circle, rectangle, and triangle, example of three-dimensional figures are a sphere, cuboid, and a pyramid.
A sphere does not have any planes inside it, as a plane is a two-dimensional flat surface, whereas a sphere is a three-dimensional object with a curved surface.
No, they intersect at a line.
No, the two planes intersect at a line, which is an infinite number of points.
They are the points where three (or more) planes (or faces of the shape) meet.
It is the intersection of two planes or the line joining two vertices.