In this page we practice distinguishing between length, area, and volume using different examples and units.
We also practice calculating:
- length in one dimension (\(1D\))
- area in two dimensions (\(2D\))
- volume in three dimensions (\(3D\))
Example 1 — Length
A road has length \(12 \text{ m}\).
So, the distance from one end to the other is:
\(12 \text{ m}\)
Example 2 — Area of a Rectangle
A rectangle has:
- Length \(= 5 \text{ m}\)
- Width \(= 2 \text{ m}\)
Using the formula:
\(A = L \times W = 5 \times 2 = 10 \text{ m}^2\)
So, the area is:
\(10\) square meters
Example 3 — Area of a Square
A square has side length \(4 \text{ m}\).
\(A = 4 \times 4 = 16 \text{ m}^2\)
So, the area is:
\(16\) square meters
Example 4 — Volume of a Cube
A cube has:
- Length \(= 2 \text{ m}\)
- Width \(= 2 \text{ m}\)
- Height \(= 2 \text{ m}\)
\(V = 2 \times 2 \times 2 = 8 \text{ m}^3\)
So, the volume is:
\(8\) cubic meters
Example 5 — Volume of a Rectangular Prism
A box has:
- Length \(= 4 \text{ m}\)
- Width = \(3 \text{ m}\)
- Height = \(2 \text{ m}\)
\(V = 4 \times 3 \times 2 = 24 \text{ m}^3\)
So, the volume is:
\(24\) cubic meters
Key Idea
- Length → measured in meters (\(m\))
- Area → measured in square units (\(m^2\))
- Volume → measured in cubic units (\(m^3\))
Practice
- More Examples (Current page)
- Take the Quiz
Continue Learning
- Length, Area, and Volume: What’s the Difference?
- Difference between 1D, 2D, and 3D
- 3D, 4D, and Beyond in Real Life