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 m.

So, the distance from one end to the other is:

12 m

Example 2 — Area of a Rectangle

A rectangle has:

• Length = 5 m
• Width = 2 m

Using the formula:$$A = L \times W = 5 \times 2 = 10 \text{ m}^2$$A=L×W=5×2=10 m2

So, the area is:

10 square meters

Example 3 — Area of a Square

A square has side length 4 m.$$A = 4 \times 4 = 16 \text{ m}^2$$A=4×4=16 m2

So, the area is:

16 square meters

Example 4 — Volume of a Cube

A cube has:

• Length = 2 m
• Width = 2 m
• Height = 2 m

$$V = 2 \times 2 \times 2 = 8 \text{ m}^3$$V=2×2×2=8 m3

So, the volume is:

8 cubic meters

Example 5 — Volume of a Rectangular Prism

A box has:

• Length = 4 m
• Width = 3 m
• Height = 2 m

$$V = 4 \times 3 \times 2 = 24 \text{ m}^3$$V=4×3×2=24 m3

So, the volume is:

24 cubic meters

Key Idea

• Length → measured in meters (m)
• Area → measured in square units (m²)
• Volume → measured in cubic units (m³)

Practice

• More Examples
• Take the Quiz

Continue Learning

1. Length, Area, and Volume: What’s the Difference?
2. Why the Area of a Circle is 𝜋𝑟² (Visual Explanation)
   

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