Thread: Error

Hello , i'm almost new on C++ , i've been following lessons but they seem the same with different words from another coding language i learned in school .
I wanted to make a simple program which will ask you to choose a shape ( triangle or etc...) .
But i get this error when i try to compile .

Code:

Compiler: Default compilerExecuting  g++.exe...
g++.exe "C:\Dev-Cpp\cpp\surfaces.cpp" -o "C:\Dev-Cpp\cpp\surfaces.exe"    -I"C:\Dev-Cpp\lib\gcc\mingw32\3.4.2\include"  -I"C:\Dev-Cpp\include\c++\3.4.2\backward"  -I"C:\Dev-Cpp\include\c++\3.4.2\mingw32"  -I"C:\Dev-Cpp\include\c++\3.4.2"  -I"C:\Dev-Cpp\include"   -L"C:\Dev-Cpp\lib" 
C:\Dev-Cpp\cpp\surfaces.cpp: In function `int main()':
C:\Dev-Cpp\cpp\surfaces.cpp:21: error: expected primary-expression before "else"
C:\Dev-Cpp\cpp\surfaces.cpp:21: error: expected `;' before "else"


Execution terminated

My C++ code (sry for wrong english on it but its a priv work xD) ::

Code:

#include <iostream>using namespace std;


int main()
{
    int triangle, square ;
    cout << "Choose your shape=";
    if( triangle > square );
    {
        int base, height, sum;
        cout << "Enter the base of triangle here=" ;
        cin >> base;
        cout << "Enter the height of triangle here=" ;
        cin >> height;
        sum = base * height / 2 ;
        cout << "The Surface of the triangle is=";
        cout << sum;
        system ("PAUSE");
        return 0;
    }
    else( square > triangle );
    {
          int length, width, sum;
          cout << "Enter the length of square here=" ;
          cin >> length;
          cout << "Enter the width of square here=" ;
          cin >> width;
          sum = length * width;
          cout << "The Surface of the square is=";
          cout << sum;
          system ("PAUSE");
          return 0;
    }
}