static void Main(string[] args)
{
Console.Write("Page_1: ");
int page1 = Convert.ToInt32(Console.ReadLine());
Console.Write("Page_2: ");
int page2 = Convert.ToInt32(Console.ReadLine());
Console.Write("Page_3: ");
int page3 = Convert.ToInt32(Console.ReadLine());
Console.Write("Height: ");
int height = Convert.ToInt32(Console.ReadLine());
triangle S1 = new triangle(page1, page2, page3, height);
double shedegi = S1.Fartobi();
Console.WriteLine("\nPage_1:" + page1 + "\nPage_2:" + page2 + "\nPage_3:" + page3 + "\nHeight:" + height + "\nFartobi:" + S1.Fartobi());
Console.ReadKey();
}
public double Fartobi(triangle sam1)
{
return((sam1.page1 * sam1.height) / 2);
}