C# program to calculate trapezoid area

Following program shows you how to calculate trapezoid area.
This program gets trapezoid base and height from user and calculates area and prints it using following formula
Area = (base1 + base2) X height /2

using System;

class MainClass {
  public static void Main (string[] args) {
    Console.WriteLine("Please enter base1 of trapezoid:");
    double trapezoidBase1 = Convert.ToDouble(Console.ReadLine());

    Console.WriteLine("Please enter base2 of trapezoid:");
    double trapezoidBase2  = Convert.ToDouble(Console.ReadLine());

    Console.WriteLine("Please enter height  of trapezoid:");
    double trapezoidHeight  = Convert.ToDouble(Console.ReadLine());

    double areaOfTrapezoid = (trapezoidBase1 + trapezoidBase2) * trapezoidHeight / 2;
    Console.WriteLine("Area of trapezoid is: " + areaOfTrapezoid);

  }
}

Output:

Please enter base1 of trapezoid:
 12
Please enter base2 of trapezoid:
 16
Please enter height  of trapezoid:
 18
Area of trapezoid is: 252