Program CT_Dien_Tich;
Uses crt;
Var a,b,c S1,S2,S : real;
Begin
CLRSCR;
Write ('Nhap 3 so a, b, c'); Readln (a,b,c) ;
S1:= a*b;
S2:= 1/2 *a*c;
S:= S1+S2;
Write ('S=',S:5:3);
Readln;
End.
Program Tinh_dien_tich;
Uses Crt;
Var a, b, c, cn, tg, S: Real;
Begin
Clrscr;
Writeln(' Nhap a, b de tinh hcn =');
Readln(a,b);
Writeln('Nhap a, c de tinh tg =');
Readln(a,c);
cn := a*b;
tg:= (a*c)/2;
S:= tg + cn;
Writeln('Vay dien tich hinh tren la =',S:0:1);
Readln;
End.