Area of a Rectangle
Area of a rectangle of length l and breadth b.
A = l \times b
1What it means
The area of a rectangle is simply length multiplied by breadth. A square is the special case where l = b.
2Variables
| Symbol | Meaning |
|---|---|
| A | Area |
| l | Length |
| b | Breadth (width) |
3Worked examples
Example 1 Worked solution
Q. Find the area of a 12 m × 5 m room.
- A = l × b = 12 × 5.
✓ A = 60 m²
4Where it's used
- ✦Flooring, painting and tiling estimates.
- ✦Land and plot measurement.
5Tips & common mistakes
- !Keep both sides in the same unit before multiplying.
- !Perimeter is different: P = 2(l + b).