### My issue

where I make mistake in this code for this problem??

give me hint or guide me,please

### My code

```
#include <bits/stdc++.h>
using namespace std;
int main() {
double pi = 3.14;
double radius = 8.9; //radius has to be declared as a 'double'
double area = pi * radius * 2;
cout << "The Area of the given Circle is ";
cout << area;
return 0;
}
```

Learning course: Learn C++

Problem Link: CodeChef: Practical coding for everyone

@jayambe7

The formula for finding area of a circle is not correct in your code.

The formula is; [ *area = (pi * r * r*) or, *(pi * r-squared)* ].

In your code, you are using formula for finding the circumference of a circle thatâ€™s why code is not being correct.

Here is my code for reference.

```
#include <bits/stdc++.h>
using namespace std;
int main() {
double pi = 3.14;
double radius = 8.9; //radius has to be declared as a 'double'
double area = pi * radius * radius;
cout << "The Area of the given Circle is ";
cout << area;
return 0;
}
```