#include <cstdlib>
#include <iostream>
#include <math.h>

using namespace std;

int main(int argc, char *argv[])

{
    
int ap;
cout << "Do you want to work out an area problem or a perimeter problem? If area, type 1, if perimeter, type 2." << endl;
cin >> (ap);

if (ap==1){

     cout << " What kind of shape are you looking at? For a square type 1, for a rectangle type 2, for a triangle type 3 and for a circle type 4."<< endl;
     int shapetype;
     cin >> shapetype;
        if (shapetype==1){
        cout << "What is the length of any side?" << endl;
        float anyside;
        cin >> anyside;
        float area;
        area = (anyside) * (anyside);
        cout << "The area is " << area << " square units" << endl;
        }
     else if (shapetype == 2) {
        cout << "What is the length?" << endl;
        float length;
        cin >> length;
        cout << "What is the width?" << endl;
        float width;
        cin >> width;
        float area;
        area = length * width;
        cout << "The area is " <<  area << " square units" << endl;
        }
     else if (shapetype == 3) {
        cout << "What is the base length?" << endl;
        float base;
        cin >> base;
        cout << "What is the height from base to apex?" << endl;
        float height;
        cin >> height;
        float area;
        area = ((0.5) * base) * height;
        cout << " The area is " << area << " square units." << endl;
        }

     else if (shapetype == 4) {
        cout << "What is the length of the radius?" << endl;
        float radius;
        float pi =3.14159265358979323846264338327950288419716939937510;
        cin >> radius;
        float area;
        area = (pi) * (radius* radius);
        cout << " The area is " << area << " square units." << endl;
        }
    }
  else if (ap == 2) {
  cout << "What kind of shape are you looking at? For a square type 1, for a rectangle type 2, for a triangle type 3 and for a circle type 4. "<< endl;
  int shapetype;
  cin >> shapetype;
    if (shapetype == 1){
        cout << "What is the length of any one side?"<< endl;
        float length;
        cin >> length;
        float perimeter;
        perimeter = length * 4;
        cout << "The perimeter is " << perimeter << " units." << endl;
        }
    else if (shapetype == 2) {
        cout << "What is the length?" << endl;
        float length;
        cin >> length;
        cout << "What is the width?" << endl;
        float width;
        cin >> width;
        float perimeter;
        perimeter = (length * 2) + (width * 2);
        cout << "The perimeter is " << perimeter << " units" << endl;
        }
    else if (shapetype == 3) {
        cout << " What is the length of side 1?" << endl;
        float side1;
        cin >> side1;
        cout << " What is the length of side 2?" << endl;
        float side2;
        cin >> side2;
        cout << " What is the length of side 3?" << endl;
        float side3;
        cin >> side3;
        float perimeter;    
        perimeter = side1 + side2 + side3;
        cout << "The perimeter is " << perimeter << " units" << endl;
        }
    else if (shapetype == 4) {
        cout << "What is the radius?" << endl;
        float radius;
        cin >> radius;
        float diameter;
        diameter = 2 * radius;
        float pi;
        pi = 3.14159265358979323846264338327950288419716939937510;
        float circ;
        circ = pi * diameter;
        cout  << "The circumference or perimeter is " << circ << " units";
        }
    }
      
    system("PAUSE");
    return EXIT_SUCCESS;
}

int main()
{
    int exit;
    while(1==1)
    {
        cout << "Hello"<<endl;
        cout << "Hello"<<endl;
        cout << "Hello"<<endl;
        cout << "Would you like to exit?"<<endl;
        cin >> exit;
        
        if(exit == 1)
        {
            break;
        }                      
    }


return 0;
}