A cuboid is a three-dimensional structure having six rectangular faces. These six faces of the cuboid exist as a pair of three parallel faces. When the area of the faces of a cuboid is the same we call this cuboid as a cube. The area of all the faces of a cube is the same as they are all squares. Read about 3d shapes here.
Now, think of a scenario where we need to calculate the amount of sugar that can be accommodated in a cuboidal box. In other words, we mean to calculate the capacity of this box. The capacity of a cuboidal box is basically equal to the volume of cuboid involved.
In this article, let us discuss what is a volume of a cuboid, its formula, along with the volume of a cuboid prism and a cube example.
Area and Volume of Cuboid
The total surface area of a cuboid is equal to the sum of the areas of the six rectangular faces whereas the Lateral surface area of a cuboid equal to the sum of the four rectangular faces, in which two rectangular faces of the and bottom faces are excluded. The formula for the total surface area and lateral surface area of a cuboid is given as:
Total Surface Area of a Cuboid = 2 (lb + hb + lh) square units
Lateral Surface Area of a Cuboid = 2h (l+b)
Now, let us discuss the volume of a cuboid in detail.
What is the Volume of a Cuboid?
The volume of a three-dimensional shape Cuboid, in general, is equal to the amount of space occupied by the shape cuboid. The term “solid Rectangle” is also known as a cuboid. Because all the faces of a cuboid are rectangular. In rectangular cuboid, all the angles are at right angles and the opposite faces of a cuboid are equal.
The general formula for the calculation of the volume of a cuboid is given below.
The volume of cuboid: The volume of a cuboid is given by the product of its dimensions.
The volume of a cuboid of length ‘l’, breadth ‘b’, height ‘h’ = l×b×h cubic units
Also, try: Volume of Cuboid Calculator
Volume of a Cuboid Prism
A cuboid prism or a rectangular prism is the same as the cuboid. It has 6 faces, 8 vertices, and 12 edges. When a cuboid prism or a rectangular prism has a rectangular cross-section. A prism is called right prism when the angle between the base and the sides are at right angles. Also, the top and the bottom surfaces are in the same shape and size. The volume of the cuboid prism is given as:
Volume of a cuboid prism or rectangular prism, V= length × breadth × height (cubic units)
Volume of a Cube
Volume of cube: Cuboid in which length of each edge is equal is known as a cube. Thus,
Volume of a cube of side ‘a’ = a3
Problems on Volume of a Cube and Cuboid
Question 1: Calculate the length of the edge of a cube-shaped container of volume 216 m3.
Solution: Volume of a cube= a3
=> a3= 216
=> a = 6 m
Question 2: Calculate the amount of air that can be accumulated in a room that has a length of 5 m, breadth of 6 m and a height of 10 m.
Solution: Amount of air that can be accumulated in a room = capacity of the room = volume of a cuboid
Volume of cuboid = l×b×h = 5 ×6 ×10 = 300 m3
Thus, this room can accommodate the maximum of 300 m3 of air
To learn and practice more problems in the surface area of cuboid, you can visit BYJU’S – The Learning App