#include <iostream.h>
#include <conio.h>
#include <stdlib.h>
/**-------------------------
Algoritma dan Pemrograman
---------------------------**/
int main() {
unsigned int pilihan;
cout << "MENU PILIHAN" << endl;
cout << "------------" << endl;
cout << "1. hitung luas lingkaran" << endl;
cout << "2. hitung luas persegi" << endl;
cout << "3. hitung luas segitiga" << endl;
cout << "4. exit" << endl;
cout << "------------" << endl;
while (pilihan>=0){
cout << "pilihan anda (1/2/3/4) : "; cin >> pilihan;
if (pilihan== 1)
{
cout << "-------------------------------------"<< endl;
cout << "Menghitung Luas Lingkaran" << endl;
float r;
cout << "Masukan jari-jari : "; cin >> r;
float Ll = 3.14*r*r;
cout << "Luas Lingkaran : " << Ll << endl;
cout << "-------------------------------------"<< endl;
}
