#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: ";<br> cin >> perimeter;
cout << "r vpisannoi okruzhnosti = " << vpisannayaOkryzhnost(perimeter) << endl;<br> cout << "R opisannoi okruzhnosti = " << opisannayaOkryzhnost(perimeter) << endl;<br>
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.