ClassPoint

#include <iostream>
#include <math.h>
#define PI 3.14159265

using namespace std;

class Point {
protected:
    double x, y; //координаты треугольника
public:
    Point(double a = 0, double b = 0); //конструктор по умолчанию
    Point(const Point&); //конструктор копирования
    void Show(); //Показ координат
    void Move(double xs, double ys); //Смещение координат
};



Point::Point(double a, double b) {
    x = a;
    y = b;
}

Point::Point(const Point& other) {
    x = other.x;
    y = other.y;
}

void Point::Show() {
    cout << "x = " << x << endl << "y = " << y << endl;
}

void Point::Move(double xs, double ys) {
    cout << "The point is shifted by (" << xs << ", " << ys << ")" << endl;
    x += xs;
    y += ys;
}


class Triangle : public Point {
    int R; //радиус
    int Phi; //угол
public:
    Triangle(double az = 0, double yz = 0, double Rz = 0, double Phiz = 0) : Point(az, yz), R(Rz), Phi(Phiz) {

    }
    void Input(); //ввод радиуса
    void Turn(int); //поворот фигуры на n градусов
    void Show(); //показ координат
};

void Triangle::Input() {
    cin >> R;
}

void Triangle::Turn(int alpha) {
    Phi += alpha;
}

void Triangle::Show() {
    int k = 3; //колличество углов, 3 - т.к. треугольник

    for (int i = 0; i < k; i++) {
        x += R * cos(Phi * PI / 180); y += R * sin(Phi * PI / 180);
        Phi += 120;
        cout << "x" << i << ": " << int(x * 100 + 0.5) / 100.0 << "\t\t" << "y" << i << ": " << int(y * 100 + 0.5) / 100.0 << endl;
    }

}

int main() {
    Triangle colt(0,0,3,0);
    int alpha;

    cout << "Enter radius: ";
    colt.Input();
    colt.Show();
    cout << "Enter how many degrees you want to rotate the triangle: " << endl;  cin >> alpha;
    colt.Turn(alpha);
    colt.Show();

    int x1, y1;
    cout << "Enter how many coordinates you want to shift the triangle" << endl << "X: "; cin >> x1; cout << "Y: "; cin >> y1;
    colt.Move(x1, y1);
    colt.Show();
    //Triangle colt1(0, 0, 3, 0);
    //colt1.Show();

    return 0;
}