Must be 3 or more
Regular Polygon Formulas
Area (using side)
A = (n × s²) / (4 × tan(pi/n))
Area (using apothem)
A = (1/2) × P × a
where P = perimeter, a = apothem
Perimeter
P = n × s
Interior Angle
Angle = ((n - 2) × 180) / n
Frequently Asked Questions
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