Star Shape Calculator
Calculate star shape — regular polygon geometry properties.
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Perimeter
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Interior Angle
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Area
Recent Calculations
What Is Star Shape?
Star Shape calculates perimeter, interior angle, and area of a regular polygon.
Formula
A = (n × s²) / (4 tan(π/n)), interior angle = (n−2)×180/nFrequently Asked Questions
What is a regular polygon?
A polygon with all sides equal length and all interior angles equal.