четырёхгранник
м геом
tetraedro m
tetrahedron
{N}
քառանիստ
чатырохграннік, -ка муж.
м. мат.
төрт кырдык.
м. геом.
tétraèdre m
četrskaldnis, tetraedrs
м мат.дүрткырлык
чоррӯя, чорқирра
м.
tetraedro
čtyřhran
матем.
чотиригранник
"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