Page 2 - Lesson Notes-Ch.13 SA and Volumes(Cuboids and Cubes)

occupies, and the capacity of an object is the volume of the
substance its interior can accommodate.

Lateral or Curved Surface Area

The surface area of the solid shape after leaving the top and bottom

face of the figure is called the lateral surface of the shape. It is also
known as area of the four walls.

The unit of lateral surface area is a square unit.

Total Surface area or Surface Area

The total surface area (or Surface area) of a solid is equal to the sum
of the areas of its all faces.

Cuboid and Cube
Cuboid and Cube are three-dimensional shapes which consist of six
faces, eight vertices and twelve edges. Both the shapes look the same but
have different properties. The surface areas of cuboid and cube differ from
each other.
In everyday life, objects like a wooden box, a matchbox, a tea packet, a
chalk box, a dice, a book etc are encountered. All these objects have a
similar shape. In fact, all these objects are made of six rectangular planes.
The shape of these objects is either a cuboid or cube. Here, in this article,
we will learn the difference between the two shapes with the help of their
properties and formulas of surface area and volume.

Definition of Cube and Cuboid

Cuboid: A cuboid is a solid (or 3-D shape) polyhedron having six faces,
eight vertices and twelve edges. The faces of the cuboid are parallel and
equal in dimensions. But not all the faces of a cuboid are equal in
dimensions.
Cube: A cube is a three-dimensional shape which is defined XYZ plane.
It has six faces, eight vertices and twelve edges. All the faces of the
cube are in square shape and have equal dimensions.

Shape of Cuboid and Cube

A cuboid is a closed 3-dimensional geometrical figure bounded by six
rectangular plane regions.

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