Star Shape Calculator
CalculatorScale.com
Input Parameters
Instant Real-time Calculation
Outer Star Radius (R)
cm
Inner Star Radius (r)
cm
Calculate
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Result
Math
5-Point Star Area
--
sq cm
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Calculation Logic:
The Star Shape Calculator is evaluated using Area = 5 × (0.5 × R_outer × R_inner × sin(36°)).