Do you ever wonder how to get the area of a circle using a low-level computer language? Well, C++ is the best one to accomplish said task. Here take a look:
/* * Question 30 - Quiz number 4 */ #include <iostream> using namespace std; //declaring the rectangle class. this will allow us to eventually make a whole bunch of different rectangles class Circle { private: float radius; public: void setRadius(float r) { radius = r; } const double pi = 3.14159265358979323846; float getArea() const { return pi * radius * radius; } }; int main() { float finalArea; // First circle Circle C1; float radius; // 4.5 cout << "Please enter radius of circle" << endl; cin >> radius; C1.setRadius(radius); cout << C1.getArea() << endl; // Second circle Circle C2; float radius2; // 7.4 cout << "Please enter radius of second circle" << endl; cin >> radius2; C2.setRadius(radius2); cout << C2.getArea() << endl; // Area ob both circle combined finalArea = C1.getArea() + C2.getArea(); cout << "The total area of the two circle is " << finalArea << endl; //output total area to user return 0; //done }
Want to play with it? Go to my repl.it at Area of Circle in C++. Bye-Bye 🙂
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