If the lengths of the sides are also equal then it is a regular polygon.
==Tehnične specifikacije====Glej tudi==*Tupoljev TB-4*Junkers G.38*Dornier Do X*Kalinin K-7*Ilja Muromec*Bristol Brabazon*Sikorsky Ruski Vitjaz==Sklici in reference====Bibliografija====Zunanje povezace==* Crash memorial at Find-A-Grave* Russian: Nikolai Blagin, biography Babelfish rough English translation here* Short article on the ANT-20 (formerly linked video clip is no longer accessible)* Catastrophe of Maxim Gorky Babelfish rough English translation from Russian History of Aviation, Publ Young Guards (1936)