Autopatrolled users, Bureaucrats, Confirmed users, Interface administrators, Rollbackers, Administrators
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[[File:Regular icosagon.svg|right|150px]]
'''Duadesgon''' or '''20gon'''
== Meter ==
Moyun gono de
=== Peryaje ===
Peryaje de
:<math>\text{Peryaje} = 5a^2(1 + \sqrt{5} + \sqrt{5 + 2\sqrt{5}}).</math>
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== Misal ==
<gallery>
Shelbyville Chautauqua Auditorium.jpg|Duadesgonli kostruixey in [[Usa]] (
</gallery>
==
<references />
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