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.
Stir until well blended. Cover and cook for at least 45 minutes but if you have the time, cook it for 2 to 2 1/2 hours, it will be even better. Bring a large pot of lightly salted water to a boil. Remove from heat and add the lasagna noodles. Allow the noodles to sit in the water for a few minutes before using.In a bowl, mix together the ricotta cheese, eggs and 2 tablespoons of parsley. Mix in the Parmesan cheese. Set aside.In a 15 x 10 x 2 baking dish, pour 2 cups of sauce and spread over the bottom of the baking dish. Arrange 4 lasagna noodles on top of the sauce, Spread half of the ricotta mixture on top of the noodles.n a bowl, mix together the ricotta cheese, eggs and 2 tablespoons of parsley. Mix in the Parmesan cheese. Set aside. In a 15 x 10 x 2 baking dish, pour 2 cups of sauce and spread over the bottom of the baking dish. Arrange 4 lasagna noodles on top of the sauce, Spread half of the ricotta mixture on top of the noodles.