Please check my code for the code project 1 on c# basics

Question

So i was tryiny to figure out a solution for the code project 1 for c# and my code worked on visual studio but not on sololearn. Any idea why?
heres my code :
namespace SoloLearn
{
class Program
{
static void Main(string[] args)
{
const double pi = 3.14;
double radius;
double Area;
Console.WriteLine("What is the r");
radius = Convert.ToInt32(Console.ReadLine());
Console.WriteLine(radius);
radius = radius * radius;
Area = radius * pi;
Console.WriteLine("This is the Area");
Console.WriteLine( Area);

}
}
}

Answer 1

Dimitry Aujour your code appears to work on sololearn .. can you explain what error you are speaking of

https://code.sololearn.com/cSjpELKjL5wO/?ref=app

Answer 2

Dimitry Aujour there is one slight correction I did see as if you want to enter a decimal number you need to use
Convert.ToDouble(Console.ReadLine());
Not
Convert.ToInt32(Console.ReadLine());

Answer 3

That actually helped me bro thank you!