Regular polygon area
Regular polygon area: use number of sides, side length. Review the formula, worked example and calculation steps.
Inputs
Use the units shown—
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Formula & explanation
A = n s² / [4 tan(π/n)]
Variables & units
- Number of sides
- Numeric value · minimum 3, maximum 1000
- Side length
- m · minimum 0, maximum 1000000000000
Worked example
A regular square of side 2 has area 4.
Assumptions
Every side and every interior angle must be equal.
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Practice with an example
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