#include <iostream>
#include <time.h>
#include <vector>
//void menuDisp();
double circum(double);
using namespace std;
int main(){
//srand(time(NULL));
//int x= (rand()%5)+1;
//cout << x;
//menuDisp();
double rad=0;
double circumference=0;
cout << "\nEnter a value for the radius: ";
cin >> rad;
circumference = circum(rad);
cout << "\n The circumference of the circle is: " << circumference << endl;
return 0;
}
//void menuDisp(){
// std::cout << "\nWelcome to the tutorial, press 1 for bacon: ";
//}
double circum (double radius){
double pi = 3.1415;
double circumf =(2*radius)* pi;
return circumf;
}
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