Μηκος τραχηλου β επιπεδου

Question

&Gamma;&iota;&alpha;&tau;&rho;έ  &kappa;&alpha;&lambda;&eta;&sigma;&pi;έ&rho;&alpha;   .&tau;&omicron; &mu;ή&kappa;&omicron;&sigmaf; &tau;&rho;&alpha;&chi;&eta;&lambda;&omicron;&upsilon; &tau;&eta;&nu; 21 &epsilon;&beta;&delta;&omicron;&mu;&alpha;&delta;&alpha; &epsilon;ί&nu;&alpha;&iota; 32mm.&Pi;ώ&sigmaf;  &tau;&omicron; &alpha;&xi;&iota;&omicron;&lambda;&omicron;&gamma;&epsilon;&iota;&tau;&epsilon;; &theta;&alpha; έ&pi;&rho;&epsilon;&pi;&epsilon; &nu;&alpha; &epsilon;ί&nu;&alpha;&iota; &pi;&epsilon;&rho;&iota;&sigma;&sigma;&omicron;&tau;&epsilon;&rho;&omicron;;&theta;&alpha; ή&theta;&epsilon;&lambda;&alpha; &tau;&eta; &gamma;&nu;ώ&mu;&eta; &sigma;&alpha;&sigmaf;.&epsilon;&upsilon;&chi;&alpha;&rho;&iota;&sigma;&tau;ώ.