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Posted by : Efdi Minggu, 01 Desember 2013


unit Ukerucut;
interface
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, jpeg, ExtCtrls;
type
  TForm1 = class(TForm)
    Image1: TImage;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    Label5: TLabel;
    Edit1: TEdit;
    Edit2: TEdit;
    Edit3: TEdit;
    Edit4: TEdit;
    Edit5: TEdit;
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var T,R,S,L,V:real;
begin
  //input
  T:=strtofloat(edit1.text);
  R:=strtofloat(edit2.text);
  S:=strtofloat(edit3.text);
  //proses
  V:=1/3*3.14*2*r*t;
  L:=3.14*R*(R+S);
  //output
  edit4.Text:=floattostr(V);
  edit5.Text:=floattostr(L);
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
  edit1.Text:='';
  edit2.Text:='';
  edit3.Text:='';
  edit4.Text:='';
  edit5.Text:='';
end;

procedure TForm1.Button3Click(Sender: TObject);
begin
 close;
end;

end.

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