private static void SAS()
{
// Formula: SAS or "Side angle Side" Method
// S = (a * b * sin(C)) / 2
// Where a and b are sides and C is the angle between them
Console.WriteLine("Enter side 'a': ");
double a = double.Parse(Console.ReadLine());
Console.WriteLine("Enter side 'b': ");
double b = double.Parse(Console.ReadLine());
Console.WriteLine("Enter Angle 'C' in Degree: ");
double c = double.Parse(Console.ReadLine());
// Math.Sin accepts the angle value in radians - so if we want to input degrees
// we must convert the degree value to radian value with the following formula:
// Convertion formula: Radians = (Degree * (PI / 180)).
double angleInRadians = c * Math.PI / 180;
double S = (a * b * Math.Sin(angleInRadians)) / 2;
Console.WriteLine("S = {0}", S);
}