To find the area of a rectangle, you multiply its length by its width.

Area of a rectangle=length×width\text{Area of a rectangle}=\text{length}\times \text{width}Area of a rectangle=length×width

Quick Scoop: Core Idea

  • A rectangle is a flat shape with 4 sides and 4 right angles.
  • The area tells you how much space is inside that shape.
  • If you know the length and width, just multiply them to get the area in square units (like cm², m², in²).

Example:
If a rectangle has:

  • length = 8 cm
  • width = 3 cm

Then

Area=8×3=24 cm2\text{Area}=8\times 3=24\text{ cm}^2Area=8×3=24 cm2

So the area is 24 square centimeters.

Step‑by‑step way to do it

  1. Identify the length.
  2. Identify the width.
  3. Multiply length × width.
  4. Attach the correct square unit (m², cm², etc.).

Mini example:
A garden is 5 m long and 4 m wide:
Area = 5 × 4 = 20 m² → it covers 20 square meters.

Why “square units”?

Imagine covering the rectangle with little 1-by-1 squares (like tiles).

  • Each small square = 1 square unit.
  • The total number of those squares = the area.
    Multiplying length × width is a quick way to count all those squares without drawing them.