Trapezoid Area

using System;

class TrapezoidArea
{
    static void Main()
    {
        double trapezoidSideA, trapezoidSideB, trapezoidHeight;
        bool inputCheck;

        Console.WriteLine("Trapezoid's area");

        Console.WriteLine("Enter value side A: ");
        inputCheck = double.TryParse(Console.ReadLine(), out trapezoidSideA) && trapezoidSideA > 0 && trapezoidSideA <= double.MaxValue;
        if (!inputCheck)
        {
            Console.WriteLine("Invalid input!\n");
            Main();
        }

        Console.WriteLine("Enter value side B: ");
        inputCheck = double.TryParse(Console.ReadLine(), out trapezoidSideB) && trapezoidSideB > 0 && trapezoidSideB <= double.MaxValue;
        if (!inputCheck)
        {
            Console.WriteLine("Invalid input!\n");
            Main();
        }

        Console.WriteLine("Enter value height H: ");
        inputCheck = double.TryParse(Console.ReadLine(), out trapezoidHeight) && trapezoidHeight > 0 && trapezoidHeight <= double.MaxValue;
        if (!inputCheck)
        {
            Console.WriteLine("Invalid input!\n");
            Main();
        }
        checked
        {
            Console.WriteLine("Result: S = 1/2 * (A + B) * H = 1/2 * ({0} + {1}) * {2} = {3}\n", trapezoidSideA, trapezoidSideB, trapezoidHeight, ((trapezoidSideA + trapezoidSideB) * trapezoidHeight) / 2);
            Main();
        }
    }
}