procedure TForm1.Button1Click(Sender: TObject);
var
panjang,lebar,Luas:real;
begin
panjang:=strtofloat(Edit1.text);
lebar:=strtofloat(Edit2.text);
luas:=(panjang*lebar);
Edit3.Text:=floattostr(luas);
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
Edit1.Clear;
Edit2.Clear;
Edit3.Clear;
end;
procedure TForm1.Button3Click(Sender: TObject);
begin
Application.Terminate;
end;
end.
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