Dodecagon Area Calculator
Find regular dodecagon area, perimeter, and apothem
Calculate
Clear
Dodecagon Area Formula
A = 12s² / (4 tan(π / 12))
A regular dodecagon has twelve equal sides. Its area can be found with the general regular polygon formula using side length and n = 12.
⚠ This calculator assumes a regular 12-sided polygon. Side length must be positive.
How Dodecagon Area Works
The dodecagon can be divided into twelve congruent triangles from the center. The calculator adds those areas and reports useful related measures.
Twelve Sides
A dodecagon has 12 sides.
Regular Shape
All sides and angles are equal.
Perimeter
Perimeter equals 12s.
Apothem
Useful for checking polygon area.
💡 Example: For s=3, area is about 100.765, perimeter is 36, and apothem is 5.598.
Applications of Dodecagon Area
Clock Layouts
Tiling
Architecture
Pattern Design
Frequently Asked Questions
What is a dodecagon area calculator?▼
It calculates the area of a regular 12-sided polygon from side length.
What is the dodecagon area formula?▼
It uses A = ns²/(4 tan(π/n)) with n = 12.
How do I use this calculator?▼
Enter the side length and click Calculate.
Does it work for irregular dodecagons?▼
No. This calculator is for regular dodecagons only.
Where is dodecagon area used?▼
It is used in geometry, clock-like layouts, tiling, architecture, and pattern design.
Free online calculators and tools covering mathematics, unit conversion, text processing, and daily life. Accurate, fast, mobile-friendly, and completely free to use.
© 2026 IP331.com — Free Online Tools. All rights reserved.
About
·
Contact
·
Privacy Policy
·
Cookie Policy
·
Terms of Use
·
Disclaimer
·
Sitemap