Área Eneágono Regular
(9/4)·l²·cot(π/9).
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
A
154,546 m²
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Formula
(9/4)·l²·cot(π/9)
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