Rzeczownik
трёхгранник m
Matematyczny trójścian m
trójścian;
мат. трохграннік, -ка муж.
трохграннік; трохграньнік
trīsskaldnis
трёхгранник
серӯя
м.
triedro m
м. мат.
triedro
м
trojhran
матем., физ.
тригранник
- сопровождающий трёхгранник
"Life is far too important a thing ever to talk seriously about." Oscar Wilde
"Free speech carries with it some freedom to listen." Warren E. Burger
"Honor is not the exclusive property of any political party." Herbert Hoover
"Hitch your wagon to a star." Ralph Waldo Emerson