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.
Heat a large cast-iron skillet over medium-high heat. Add tomatillos; cook, turning a few times, until blistered in spots and beginning to soften, 10 to 12 minutes. Transfer to a bowl, cover with plastic wrap, and let steam 15 minutes. Add garlic to skillet and cook over medium heat, turning a few times, until blistered and fragrant, 1 to 2 minutes. Transfer to a blender. Add chiles to skillet and cook, turning frequently, just until toasted and soft, 30 to 60 seconds. Transfer to blender with tomatillos and accumulated juices, salt, and 2 tablespoons water. Blend to consistency of a thin salsa, about 10 seconds.