1. What is Rectangle Width and Length Calculation?

This calculator determines the unknown side of a rectangle when given either the area or perimeter along with one known side. It helps in various geometry and real-world applications where rectangle dimensions are needed.

2. How Does the Calculator Work?

The calculator uses these fundamental rectangle formulas:

Where:

• \( A \) — Area of the rectangle
• \( P \) — Perimeter of the rectangle
• \( l \) — Length of the rectangle
• \( w \) — Width of the rectangle

Explanation: When given area and one side, the other side is calculated by dividing area by the known side. When given perimeter and one side, the other side is calculated by (perimeter/2) minus the known side.

3. Importance of Rectangle Calculations

Details: Calculating rectangle dimensions is essential in construction, landscaping, interior design, and various engineering applications where precise measurements are required.

4. Using the Calculator

Tips: Select whether you know the area or perimeter, enter that value, then enter one known side length. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Can I calculate both sides if I only know area or perimeter?
A: No, you need either area or perimeter plus one side to determine the other side uniquely.

Q2: What units should I use?
A: Use consistent units for all measurements (e.g., all in meters or all in feet).

Q3: Does this work for squares?
A: Yes, squares are special rectangles where all sides are equal.

Q4: What if I get negative results?
A: Negative results indicate invalid input as lengths can't be negative.

Q5: How precise are the calculations?
A: Results are rounded to 2 decimal places for practical use.