Help Me

Question

Площадь круга

Answer 1

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SoloLearn
{
class Program
{
static void Main(string[] args)
{
const double pi = 3.14;
double radius;

//ваш код

}
}
}

Answer 2

Не могу понять, что написать...

Answer 3

Simply just u need formula area of circle which is πr^2 apply it and print result