1. What is a Rectangle?

A rectangle is a quadrilateral with four right angles. It has two pairs of equal-length sides: length (l) and width (w). Rectangles are fundamental shapes in geometry and have numerous practical applications.

2. How Does the Calculator Work?

The calculator uses these rectangle formulas:

Where:

• \( l \) — Length of the rectangle
• \( w \) — Width of the rectangle

Explanation: The perimeter is the total distance around the rectangle, while the area represents the space contained within it.

3. Importance of Rectangle Calculations

Details: Calculating perimeter and area is essential in construction, landscaping, manufacturing, and many design fields where rectangular shapes are common.

4. Using the Calculator

Tips: Enter length and width in any consistent units (meters, feet, inches, etc.). The results will be in the same units (perimeter) or square units (area).

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between perimeter and area?
A: Perimeter measures the boundary length, while area measures the surface coverage.

Q2: Can I use decimal values?
A: Yes, the calculator accepts decimal values for precise calculations.

Q3: What if length equals width?
A: Then the rectangle is actually a square, but the same formulas apply.

Q4: How accurate are the results?
A: Results are rounded to 2 decimal places for readability while maintaining practical accuracy.

Q5: Can I calculate other rectangle properties?
A: This calculator focuses on perimeter and area, but rectangles also have diagonal length which can be calculated using the Pythagorean theorem.