About This Calculator
This Regular Polygon Area Calculator helps you compute the area of any regular polygon using the number of sides and the side length. A regular polygon is a geometric shape where all sides and interior angles are equal.
How It Works
- Enter the number of sides of the regular polygon (minimum 3).
- Input the side length and select the appropriate unit (e.g., cm, m, in).
- Click the Calculate button to compute the area.
- The result will show the area in your chosen unit, along with a step-by-step formula preview.
Wherenis the number of sides, andais the length of each side.
Frequently Asked Questions
What is a regular polygon?
A regular polygon is a shape with all sides and all interior angles equal, such as an equilateral triangle or a square.
How do I find the area of a regular polygon?
You can use the formulaA = (n × a²) / (4 × tan(π/n)), wherenis the number of sides andais the side length.
What units are supported?
You can enter side lengths in centimeters (cm), meters (m), inches (in), or feet (ft). The calculator automatically converts and outputs the area in the selected unit squared.
Can this be used for irregular polygons?
No, this calculator is designed specifically for regular polygons only. For irregular shapes, a different method is required.
Is there a minimum or maximum number of sides?
The minimum is 3 (a triangle). For practical accuracy, the calculator supports up to 359 sides.