public double Altura {get;set;}
public double Base {get;set;}
public class Trigonometria
public double AreaRetangulo(double a, double b)
public double AreaTriangulo(double a, double b)
double area = (a * b) / 2;
public double AreaParalelograma(double a, double b)
Trigonometria trig = new Trigonometria();
double x = trig. AreaRetangulo(8, 4);
Console.WriteLine("AreaRetangulo: " + x);
double x1 = trig.AreaTriangulo(10, 5);
Console.WriteLine("AreaTriangulo: " + x1);
double x2 = trig. AreaParalelograma(11, 4);
Console.WriteLine("AreaParalelograma: " + x2);