Rectangle Area Calculator

Rectangle Diagram
Length: 0 Width: 0 Area: 0

About Rectangle Area Calculation

What is the Area of a Rectangle?

The area of a rectangle is the amount of space enclosed within its four sides. It represents the number of square units that can fit inside the rectangle.

Formula for Rectangle Area

The formula to calculate the area of a rectangle is:

\[A = l \times w\]

Where:

  • \(A\) is the area of the rectangle
  • \(l\) is the length of the rectangle
  • \(w\) is the width of the rectangle

Calculation Steps

  1. Measure or identify the length of the rectangle.
  2. Measure or identify the width of the rectangle.
  3. Multiply the length by the width.
  4. The result is the area of the rectangle in square units.

Example

Let's calculate the area of a rectangle with length 5 units and width 3 units:

  1. Given:
    • Length (\(l\)) = 5 units
    • Width (\(w\)) = 3 units
  2. Apply the formula: \(A = l \times w\)
  3. Substitute the values: \(A = 5 \times 3\)
  4. Calculate: \(A = 15\) square units

Visual representation:

Length: 5 units Width: 3 units Area = 15 sq units Calculation Steps: Area = Length × Width Area = 5 × 3 = 15 sq units Properties: Perimeter = 2(l + w) = 16 units Diagonal ≈ 5.83 units

Therefore, the area of the rectangle is 15 square units.