Задан периметр квадрата

#include using std: cout; using std: cin; using std: endl; #include using std: pow; using std: sqrt; double vpisannayaOkryzhnost (double); double opisannayaOkryzhnost (double); int main () { double perimeter; cout << "Vvedite perimeter: "; cin >> perimeter; cout << "r vpisannoi okruzhnosti=" << vpisannayaOkryzhnost (perimeter) << endl; cout << "R opisannoi okruzhnosti=" << opisannayaOkryzhnost (perimeter) << endl; cin.get (); return 0; }double vpisannayaOkryzhnost (double perimeter) { double a=perimeter / 4; return (a / 2); }double opisannayaOkryzhnost (double perimeter) { double a=perimeter / 4; return (sqrt (2) / 2*a); } На Гэ-паскале можно написать так: program math; var perimeter, a: real; begin write ('Vvedite perimeter: '); read (perimeter); a: =perimeter / 4; writeln ('r vpisannoi okruzhnosti=', a / 2:0:2); writeln ('R opisannoi okruzhnosti=', sqrt (2) / 2*a: 0:2); readln (); readln (); end.