Question

BASIC PROGRAMMING:

1) At the firm you work for, you have been asked to design a code to calculate the area of ​​a circle. There are elements in c ++ that help you solve this problem. Which elements are the most useful?

Answer 1

#include <iostream>

using namespace std;

int main() {
    double radius;
    cout << "Enter radius of circle: ";
    cin >> radius;
    double area = 3.14159 * radius * radius;
    cout << "Area of circle is " << area << endl;
    return 0;
}
/*
Elements of C++ that are most helpful is input(cin), output(cout) and mathematical operation (*)
*/

Enter radius of circle: 10 Area of circle is 314.159 Process finished with exit code @