public static void LocalCoordinates()
{
RightTriangle triangle = new RightTriangle(4, 6);
IList <CartesianCoordinate> coordinates = triangle.LocalCoordinates();
Assert.AreEqual(3, coordinates.Count);
Assert.AreEqual(triangleCoordinates[0].X, coordinates[0].X);
Assert.AreEqual(triangleCoordinates[0].Y, coordinates[0].Y, Tolerance);
Assert.AreEqual(triangleCoordinates[1], coordinates[1]);
Assert.AreEqual(triangleCoordinates[2], coordinates[2]);
}