#include <iostream>
using namespace std;
float cicle(float r){
float s;
const float pi=3.14;
s = pi*r*r;
return s;
}
float rectangle(float len,float wid){
float s;
s = len*wid;
return s;
}
int main()
{
int choix;
 cout << "****** WELCOME TO SURFACE AREAS******" << endl;
cout << " TYPE 1 FOR CIRCLE " << endl;
cout << " TYPE 2 FOR RECTANGLE " << endl;
cout << " TYPE 3 FOR TRAPEZIUM " << endl;
cout << " TYPE 4 FOR CONE " << endl;
cout << " TYPE 5 FOR CYLINDER " << endl;
cin >>choix;
switch(choix){
case 1:{
float radius,s;
cout<<" enter the value of the radius "<<endl;
cin>>radius;
s = cicle(radius);
cout<<" La surface de votre cercle de rayon "<<radius<<" = "<<s<<endl;
}
break;
case 2:{
float s , L,l;
cout<<" entrer la longueur et la largeur"<<endl;
cin>>L>>l;
s = rectangle(L,l);
cout<<" La surface du rectangle de longueur "<<L<<" et de largeur "<<l<<" = "<<s<<endl;
}
break;
case 3:{
}
break;
case 4:{
}
break;
case 5:{
}
break;
default :cout<<" Choix non disponible "<<endl;
    return 0;
}