Первая
Program n1;
Uses CRT;
Var a,b,c,k: integer;
begin
Writeln('Vvedite a,b,c');
Readln(a,b,c);
If (a=b)and(b=c) then begin k:=1; writeln('Ravnostoronnij') end else
If (a=b)or(b=c)or(a=c) then begin k:=1; writeln('Ravnobedrennij'); end;
If (sqr(a)=sqr(b)+sqr(c))or(sqr(b)=sqr(a)+sqr(c))or(sqr(c)=sqr(b)+sqr(a))
then begin k:=1; writeln('Pryamoygolnij'); end;
If (a>b+c)or(b>a+c)or(c>a+b) then begin k:=1; writeln('treygolnik nelza sostavit'); end;
If k=0 then writeln('Treygolnik Raznostoronnij');
readln
end.
Вторая
Program n1;
Uses CRT;
Var a,b,c: integer;
begin
ClrScr;
Writeln('Vvedite a,b,c');
Readln(a,b,c);
If (a>0)and(b>0)and(c>0) then writeln('Summa kvadratov=',sqr(a)+sqr(b)+sqr(b));
If (a mod 2=0)or(b mod 2=0)or(c mod 2=0) then writeln('Summa =',a+b+c,', Proizvedenie =',a*b*c);
readln
end.
1. 1
2. 12
3. 5
4. 134
5. 2
6. 1234
7. 5
8. 2134