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C++ program to find circumference of the circular pond with radius R
Suppose we have a number R, represents the radius of a pond. We have to find the circumference of this pond.
So, if the input is like R = 73, then the output will be 458.67252742410977361942
Steps
To solve this, we will follow these steps −
res := r * 2 * cos-inverse (-1) return res
Let us see the following implementation to get better understanding
Example
Let us see the following implementation to get better understanding −
#include<bits/stdc++.h>
using namespace std;
double solve(int r){
double res = r * 2 * acos(-1);
return res;
}
int main(){
int R = 73;
cout << solve(R) << endl;
}Input
73
Output
458.673
Updated on: 03-Mar-2022
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