Figura Geometrica

#include<iostream>
#include<math.h>
using namespace std;

class Punct {
protected:
    float x;
    float y;
public:
    Punct(float x=0, float y=0) {
        this->x=x;
        this->y=y;
    }

    void afisare() {
        //out<<"Punct ( "<<x<<","<< y<<" )"<<endl;
    }
    friend ostream& operator <<(ostream &out, const Punct &p);
    friend float distanta(Punct& a, Punct& b);
};
float distanta(Punct& a, Punct& b) {
    return sqrt((a.x-b.x)*(a.x-b.x)+ (a.y-b.y)*(a.y-b.y));
}
ostream& operator <<(ostream &out, const Punct &p) {
    out<<"Punct ( "<<p.x<<","<< p.y<<" )";
    return out;

}

class FiguraGeometrica {
public:
    virtual float getPerimetrul()=0;
    virtual float getAria()=0;
    virtual void print();
};
void FiguraGeometrica:: print() {
    cout<<"Figura geometrica oarecare"<<endl;
}

class Triunghi: public FiguraGeometrica {
    Punct a,b,c;

public:
    Triunghi(Punct a, Punct b,Punct c);
    float getPerimetrul();
    float getAria();
    void print();

};

Triunghi::Triunghi(Punct _a, Punct _b,Punct _c): a(_a), b(_b), c(_c) {
}
float Triunghi:: getPerimetrul() {
    return distanta(a,b)+distanta(b,c)+ distanta(a,c);
}
float Triunghi:: getAria() {
    ///sqrt(p*(p-a)*(p-b)*(p-c));
    float x=distanta(a,b);
    float y=distanta(a,c);
    float z=distanta(b,c);
    float p=(x+y+z)/2;
    return sqrt(p*(p-x)*(p-y)*(p-z));
}
void Triunghi:: print() {
    cout<<"Triunghi ("<<a<<" , "<<b<<" , "<<c<<")"<<endl;
}



class Cerc: public FiguraGeometrica {
    Punct centru;
    float raza;
public:
    Cerc(Punct c, float r=0);
    float getPerimetrul();
    float getAria();
    void print();

};
Cerc::Cerc(Punct c, float r): centru(c), raza(r) {
}

float Cerc:: getPerimetrul(){
    return 2*3.14*raza;
}
    float Cerc:: getAria(){
        return 3.14*raza*raza;
    }
    void Cerc::print(){
      cout<<"Cerc ("<<centru<<" , "<<raza<<")"<<endl;
    }

int main() {
    Punct a(1,1);
    cout<<a<<endl;
    Triunghi t(Punct(0,0), Punct(0,3), Punct(4,0));
    t.print();
    cout<<"Perimetru: ";
    cout<<t.getPerimetrul()<<" "<<endl;
    cout<<"Aria: ";
    cout<<t.getAria()<<"";
    cout<<endl;
    Cerc c(a,1);
    c.print();
    cout<<"Perimetru: ";
    cout<<c.getPerimetrul()<<" "<<endl;
    cout<<"Aria: ";
    cout<<c.getAria()<<"";
}