public override string ToString()
{
var sb = new StringBuilder();
sb.Append("Triangle with Side A: ");
sb.Append(Aside.ToString("0.00", CultureInfo.InvariantCulture));
sb.Append(", Side B: ");
sb.Append(Bside.ToString("0.00", CultureInfo.InvariantCulture));
sb.Append(", Side C: ");
sb.Append(Cside.ToString("0.00", CultureInfo.InvariantCulture));
sb.Append(", Angle AB: ");
sb.Append(AngleAB.ToString("0.00", CultureInfo.InvariantCulture));
sb.Append(", Angle BC: ");
sb.Append(AngleBC.ToString("0.00", CultureInfo.InvariantCulture));
sb.Append(", Angle AC: ");
sb.Append(AngleAC.ToString("0.00", CultureInfo.InvariantCulture));
sb.Append(", Surface: ");
sb.Append(CalculateSurface().ToString("0.00", CultureInfo.InvariantCulture));
sb.Append(" and Perimeter: ");
sb.Append(CalculatePerimeter().ToString("0.00", CultureInfo.InvariantCulture));
return(sb.ToString());
}