#include<iostream.h>
#include<string.h>
void LuasSegitiga(float r);
void Keliling(float r,float b);
void menu();
void main ()
{
menu ();
}
void menu ()
{
char pilihan_menu[10];
atas:
cout<<"menu program"<<endl
<<"LuasSegitiga[1]"<<endl
<<"keliling[2]"<<endl
<<"selesai[3]"<<endl
<<"masukan pilihan anda="<<endl;
cin>>pilihan_menu;
if(strcmp(pilihan_menu,"1")==0)
{
float r;
cout<<"jari_jari=";
cin>>r;
LuasSegitiga(r);
}else if(strcmp(pilihan_menu,"2")==0)
{
float r,b;
cout<<"jari=";
cin>>r;
cout<<"alas=";
cin>>b;
Keliling(r,b);
}else if(strcmp(pilihan_menu,"3")==0)
{
cout<<"HITUNG LAGI"<<endl;
}
goto atas;
}
void LuasSegitiga(float r)
{
float l;
l=(r*r);
cout<<"hasil="<<l<<endl;
}
void Keliling(float r,float b)
{
float l;
l=(r*b)/2;
cout<<"hasil="<<l<<endl;
}
