#include <iostream>
using namespace std;
class Teglalap {
public:
int a,b ;
int trulet() {
return a*b ;
}
int kerulet() {
return 2* (a+b);
}
};
class Kor {
public:
int r ;
int atmero() {
return 2*r;
}
double kerulet() {
return r*3.14*2;
}
double terulet() {
return r*r*3.14;
}
};
int main()
{
cout << "Add meg a teglalap oldalainak hosszat:" << endl;
Teglalap teglalap_Obj;
cin >> teglalap_Obj.a >> teglalap_Obj.b;
cout << endl << "A teglalap oldalainak hossza: " << teglalap_Obj.a << " es " << teglalap_Obj.b << endl;
cout << "------------------------------------------ \n\n" ;
cout << "A teglalap kerulete: " << teglalap_Obj.kerulet() << endl;
cout << "A teglalap terulete: " << teglalap_Obj.trulet() << endl;
//------------------------
cout << "\n\n========================================== \n" ;
cout << "Add meg a kor sugaranak a hosszat:" << endl;
Kor kor_Obj;
cin >> kor_Obj.r ;
cout << endl << "A kor sugaranak hossza: " << kor_Obj.r << endl;
cout << "------------------------------------------ \n\n" ;
cout << "A kor atmereje: " << kor_Obj.atmero() << endl;
cout << "A kor kerulete: " << kor_Obj.kerulet() << endl;
cout << "A kor terulete: " << kor_Obj.terulet() << endl;
return 0;
}