Definitions [5]
- Dimension: Dimensions in mathematics are the measure of the size or distance of an object or region or space in one direction. In simpler terms, it is the measurement of the length, width, and height of anything.
- Zero-dimensional: A point is a zero-dimensional object as it has no length, width, or height. It has no size. It tells about the location only. A point is dimensionless.
- One Dimensional: A line segment drawn on a surface is a one-dimensional object, as it has only length and no width.
- The 2-dimensional shapes or Plane Figures: The 2-dimensional shapes or objects in geometry are flat plane figures that have two dimensions – length and width.
- The 3-dimensional shapes or solid object: A solid object has three measurements like length, breadth, height, or depth. Hence, they are called three-dimensional shapes. Also, a solid object occupies some space
Definition: Net
A net is a two-dimensional (2D) pattern that, when folded along its edges, forms a three-dimensional (3D) solid shape.
- Polyhedron: A polyhedron is a closed space figure whose faces are polygons. A polyhedron is said to be regular if its faces are made up of regular polygons and the same number of faces meet at each vertex.
- Platonic solids: A regular polyhedron is made up of regular polygons. Such solids are also known as ‘platonic solids’.
- Non-polyhedron: A non-polyhedron is not a closed space figure, maybe one or more of the sides is a curved surface.
A pyramid is a three-dimensional shape with a flat polygonal base and triangular sides that meet at a single point, called the apex. The sides are called faces or lateral faces, and they join each edge of the base to the apex.
Definition: Prism
A prism is a transparent medium bounded by five plane surfaces with a triangular cross-section.
