Regular Polygon Calculator
About Regular Polygon Calculator
Calculate perimeter, area, and interior angle for a regular polygon.
How to Use
Calculate perimeter, area, and interior angle for a regular polygon. Enter the Sides and Side length values and review the Perimeter, Area, and Interior angle outputs after you calculate.
- Open the calculator : Use Regular Polygon Calculator from the Math category.
- Check the inputs : Review the required values and any optional settings.
- Read the formula : Use the formula and notes below to understand how the result is produced.
Common Questions
What formula does the Regular Polygon Calculator use?
area = n*s^2/(4*tan(?/n)).
Inputs
- Sides
- Side length
Outputs
- Perimeter
- Area
- Interior angle
Formula
area = n*s^2/(4*tan(pi/n))