Regular Polygon Interior Angle from Sides: 3 Number of Sides

Specific conversion page with reference context, calculator, and nearby values.

Author

Prof. Chen Wei

Math editorial contributor

Chinese AI ethics researcher at Tsinghua University, publishing extensively on algorithmic bias in hiring systems

Reviewed by

Dr. Emeka Nwosu

Math content reviewer

Nigerian legal scholar with an SJD from Yale, focused on international trade law and African continental free trade agreements

Last updatedFebruary 22, 2026

PublishedFebruary 22, 2026

Table of Contents

  1. Value details
  2. Calculator
  3. Nearby reference values
  4. FAQs
  5. Methodology and review
  6. Navigation and related conversions

3 Number of Sides converts to

60 deg

Use this as a quick reference for Regular Polygon Interior Angle from Sides.

Value Details

Input: 3 Number of Sides

Output: 60 deg

Browse all reference values for Regular Polygon Interior Angle from Sides

Regular Polygon Interior Angle from Sides

Calculate the interior angle of a regular polygon from the number of sides.

Calculated Result

Nearby Reference Values

Regular Polygon Interior Angle from Sides values near 3 Number of Sides
Number of SidesInterior Angle
3 Number of Sides60 deg
4 Number of Sides90 deg
5 Number of Sides108 deg
6 Number of Sides120 deg
7 Number of Sides128.571429 deg
8 Number of Sides135 deg
9 Number of Sides140 deg
10 Number of Sides144 deg
12 Number of Sides150 deg
15 Number of Sides156 deg
20 Number of Sides162 deg

Frequently Asked Questions

Common questions about Regular Polygon Interior Angle from Sides, formulas, and expected usage.

What does the Regular Polygon Interior Angle from Sides calculator do?

It helps with finding interior angles for regular polygon geometry and drafting.

What formula does the Regular Polygon Interior Angle from Sides calculator use?

Regular polygon interior angle = ((n - 2) × 180) / n.

What inputs are valid?

The number of sides must be an integer greater than or equal to 3.

When would I use this?

finding interior angles for regular polygon geometry and drafting

Methodology and Review

This page is generated from the same conversion definition used by the main calculator page, which keeps the calculator, reference table rows, and FAQ schema aligned.

Reviewer and update metadata are shown above and included in structured data. See our editorial policy, review process, and corrections policy.

Use this page as a fast lookup reference, then confirm final project values using applicable standards and manufacturer documentation.