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 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. Season salt and pepper to taste. Add bell peppers, cook for additional 2 minutes.
When browned, set the eggplants aside. In the same skillet cook the onions in hot olive oil for about 3 to 4 minutes, or until tender. Add the mushrooms to the onions, and cook for about 5 minutes or until mushrooms are tender. Cook the lasagna noodles in boiling salted water according to package directions.