LUAS DAN KELILING [TUGAS]

• LUAS DAN KELILING

#include 
#include 
#include 
#include 

void keluar();

void luas_segitiga()
{
int a, t;
float l,kel1,sisi_miring;
clrscr();
textcolor(5);
gotoxy(20,5);cprintf("  LUAS SEGITIGA \r \n" );
gotoxy(20,6);cprintf(" ----------------------- \r \n" );
gotoxy(20,7);cprintf("  panjang alas     =  " ); cin >> a ;
gotoxy(20,8);cprintf("  inputkan tinggi  =  ") ; cin >> t ;
l = (a*t)/2;
gotoxy(20,10);cprintf("  luas = "); cout << l << endl;
sisi_miring =sqrt((a*a)+(t*t));
kel1 = (a + t + sisi_miring) ;
gotoxy(20,11);cprintf("  sisi miring = "); cout << sisi_miring  << endl;
gotoxy(20,12);cprintf("  keliling    = "); cout << kel1  << endl;
gotoxy(20,13);cprintf(" ----------------------- \r \n" );
gotoxy(20,15);keluar();
}

void luas_persegi()
{
int s;
float lu,kel2;

clrscr();
textcolor(6);
gotoxy(20,5);cprintf ("   LUAS PERSEGI \r \n");
gotoxy(20,6);cprintf ("  ------------------ \r \n" );
gotoxy(20,7);cprintf ("   Panjang sisi = "); cin >> s ;
lu = (s*s);
gotoxy(20,9);cprintf ("   Luas     = " ); cout << lu  << endl;
kel2 = (4*s) ;
gotoxy(20,10);cprintf("   Keliling = ");cout << kel2  << endl;
gotoxy(20,11);cprintf ("  ------------------ \r \n" );
gotoxy(20,13);keluar();
}

void luas_ketupat()
{
int d;
float luas,kel3,sisi,sd;
clrscr();
textcolor(9);
gotoxy(20,5);cprintf ("    LUAS BELAH KETUPAT \r \n");
gotoxy(20,6);cprintf (" ------------------------- \r \n");
gotoxy(20,7);cprintf ("    Panjang diagonal = "); cin >> d ;
luas = (d*d)/2;
gotoxy(20,9);cprintf ("    Luas     = "); cout << luas  << endl;
sd = d/2;
sisi = sqrt((sd*sd)+(sd*sd));
gotoxy(20,10);cprintf("    Sisi     = " ); cout<< sisi  << endl;
kel3 = (4*sisi);
gotoxy(20,11);cprintf("    Keliling = " );cout << kel3 << endl;
gotoxy(20,12);cprintf (" ------------------------- \r \n");
gotoxy(20,3);keluar();
}

void menu()
{
char pil;
clrscr();
textcolor(2);
gotoxy(20,14);cprintf("  JUNED/11051103247 \r \n " );
gotoxy(20,5);cprintf ("  LUAS DAN KELILING  \r \n " );
gotoxy(20,6);cprintf (" -------------------  \r \n " );
gotoxy(20,7);cprintf ("   1. segitiga         \r \n " );
gotoxy(20,8);cprintf ("   2. persegi           \r \n " );
gotoxy(20,9);cprintf ("   3. belah ketupat      \r \n " );
cout<> pil;


switch(pil)
{
case '1' : luas_segitiga();break;
case '2' : luas_persegi();break;
case '3' : luas_ketupat();
default :
gotoxy(20,3);cprintf(" input anda salah ....!!! ");getch();menu();
}
}

void keluar()
{
char x ;
textcolor(4);
cprintf( " Kembali ke Menu ...? (Y/N) "); cin >> x;
switch(x)
{
case 'Y' :
case 'y' : menu();break;
case 'N' :
case 'n' :
cout << " thankzzzz";break;
default :
{
cprintf( " input salah ... \r \n");keluar();
}
}
}

void main ()
{
menu();
}

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