Algorithm: Calculating the Area of a Rectangle

Objective:

To document a simple algorithm for calculating the area of a rectangle using structured English, a flowchart, and pseudo-code.

1. Structured English

The following describes the algorithm in structured English:

• START
• INPUT the length of the rectangle (let this be l).
• INPUT the width of the rectangle (let this be w).
• CALCULATE the area of the rectangle using the formula: Area = l × w.
• OUTPUT the calculated area.
• END

2. Flowchart

3. Pseudo-code

The following is the pseudo-code representation of the algorithm:

1. START
2. INPUT l, w // Length and Width of the rectangle
3. Area = l × w // Calculate the area
4. OUTPUT Area // Display the calculated area
5. END

4. Data Table

Step	Description
1	Start the algorithm.
2	Prompt the user to enter the length of the rectangle.
3	Store the entered length in a variable (e.g., 'l').
4	Prompt the user to enter the width of the rectangle.
5	Store the entered width in a variable (e.g., 'w').
6	Calculate the area by multiplying 'l' and 'w'.
7	Store the calculated area in a variable (e.g., 'area').
8	Display the value of 'area' to the user.
9	End the algorithm.