Regular Polygon Interior Angle from Sides Reference Values
Calculate the interior angle of a regular polygon from the number of sides.
Table of Contents
Reference Value Index
This page lists 20 reference values for quick browsing and lookup.
All Reference Values
- 3 Number of Sides = 60 deg
- 4 Number of Sides = 90 deg
- 5 Number of Sides = 108 deg
- 6 Number of Sides = 120 deg
- 7 Number of Sides = 128.571429 deg
- 8 Number of Sides = 135 deg
- 9 Number of Sides = 140 deg
- 10 Number of Sides = 144 deg
- 12 Number of Sides = 150 deg
- 15 Number of Sides = 156 deg
- 20 Number of Sides = 162 deg
- 24 Number of Sides = 165 deg
- 30 Number of Sides = 168 deg
- 40 Number of Sides = 171 deg
- 50 Number of Sides = 172.8 deg
- 60 Number of Sides = 174 deg
- 100 Number of Sides = 176.4 deg
- 180 Number of Sides = 178 deg
- 360 Number of Sides = 179 deg
- 720 Number of Sides = 179.5 deg
Reference Table
| Number of Sides | Interior Angle |
|---|---|
| 3 Number of Sides | 60 deg |
| 4 Number of Sides | 90 deg |
| 5 Number of Sides | 108 deg |
| 6 Number of Sides | 120 deg |
| 7 Number of Sides | 128.571429 deg |
| 8 Number of Sides | 135 deg |
| 9 Number of Sides | 140 deg |
| 10 Number of Sides | 144 deg |
| 12 Number of Sides | 150 deg |
| 15 Number of Sides | 156 deg |
| 20 Number of Sides | 162 deg |
| 24 Number of Sides | 165 deg |
| 30 Number of Sides | 168 deg |
| 40 Number of Sides | 171 deg |
| 50 Number of Sides | 172.8 deg |
| 60 Number of Sides | 174 deg |
| 100 Number of Sides | 176.4 deg |
| 180 Number of Sides | 178 deg |
| 360 Number of Sides | 179 deg |
| 720 Number of Sides | 179.5 deg |
Frequently Asked Questions
Frequently asked questions for Regular Polygon Interior Angle from Sides and its reference values.
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
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