Since a square is a parallelogram, a rectangle, and a rhombus, our symmetry observations for a square will be the same as those we have already seen. A trapezoid has no reflectional symmetry and no rotational symmetry. We cannot make observations.
1 Return beef and accumulated juices to pan. Stir-fry for a few minutes. Add water, tomato sauce, liver spread and bay leaf; stir to combine. Bring to a boil then simmer, about an hour or until meat tender.  Add potatoes, carrots and green olives; simmer for another 6 to 8 minutes.
In a Dutch oven, cook sausage, ground beef, onion, and garlic over medium heat until well browned. Stir in crushed tomatoes, tomato paste, tomato sauce, and water. Season with sugar, basil, fennel seeds, Italian seasoning, 1 tablespoon salt, pepper, and 2 tablespoons parsley. Simmer, covered, for about 1 1/2 hours, stirring occasionally. Bring a large pot of lightly salted water to a boil. Cook lasagna noodles in boiling water for 8 to 10 minutes. Drain noodles, and rinse with cold water. In a mixing bowl, combine ricotta cheese with egg, remaining parsley, and 1/2 teaspoon salt.