public void TestTinhChuVi()
{
TamGiac tg = new TamGiac(new Diem(0, 0), new Diem(0, 8), new Diem(6, 0));
double cv = tg.ChuVi();
double expected = 20.0;
Assert.AreEqual(cv, expected, "Tinh sai chu vi");
}
public void ChuVi()
{
ABC = new TamGiac(new Diem(-1, 1), new Diem(1, 3), new Diem(2, 0));
Assert.AreEqual(Math.Sqrt(8) + Math.Sqrt(10) * 2, ABC.ChuVi());
}