Program ba_canh_cua_tam_giac;

uses crt;

var a,b,c: real;

BEGIN

Write('nhap do dai canh a'); Readln(a);

Write('nhap do dai canh b'); Readln(b);

Write('nhap do dai canh c'); Readln(c);

If (a<(b+c)) and (b<(c+a)) and (c<(b+a)) then write('do la do dai cua mot tam giac')

else write('do khong la do dai cua mot tam giac');

Readln;

END.

Thanks