Example: C++ program to find the perimeter of a rectangle

C
C++
C#
Java
Python
PHP

// C++ program to find the perimeter of a rectangle
#include <iostream>
using namespace std;

int main() {
    float l, w, p;

    cout << "Enter the length & width of the rectangle::\n";
    cin >> l;
    cin >> w;

    /* Calculate perimeter of rectangle */
    p = 2 * (l + w);

    /* Print output */
    cout << "\nThe Perimeter of rectangle = " << p << " units";
    return 0;
}