What am I doing wrong?

Question

const double pi = 3.14;
double radius = 5;

//your code goes here
Console.WriteLine(pi*radius*radius);

Answer 1

Swiff _Vastolorde , it is mentioned that you should read radius as input, don't assign it certain value. You can read the input for example this way => double radius = Double.Parse(Console.ReadLine());
Also it is good to write in your question what task do you try to solve.

Answer 2

Swiff _Vastolorde Tag your programming language
Edit : Question has been edited .

Answer 3

I'm calculating the area of a Circle.