using System;

public class Program

{

    public static void Main(string[] args)

    {

        double m_longBase, longBase;

        double m_shortBase, shortBase;

        double m_leftLeg, leftLeg;

        double m_rightLeg, rightLeg;

        longBase=20.0;shortBase=10.0;

        leftLeg=8.0;rightLeg=6.0;

        m_longBase=Math.Abs(longBase);

        m_shortBase=Math.Abs(shortBase);

        m_leftLeg=Math.Abs(leftLeg);

        m_rightLeg=Math.Abs(rightLeg);

        Console.WriteLine("The trapezoid bases are 20.0, 10.0, the trapezoid's legs are 8.0, 6.0");

        double x = (Math.Pow(m_rightLeg,2.0)-Math.Pow(m_leftLeg,2.0)+Math.Pow(m_longBase,2.0)+Math.Pow(m_shortBase,2.0)-2*m_shortBase*m_longBase)/(2*(m_longBase-m_shortBase));

        double x1 = Math.Sqrt(Math.Pow())

    }}