It has to be a parallelogram. And if you cut it just right then it can be a rectangle and it can be a square. This is a fun problem to work with at home. Make rectangular prisms of cake. Then cut each one at different angles. See what shapes of cuts you get. And then eat the pieces.
Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (–3 + i) + (18 + 5i)?(–3 + i) + (18 + 5i) + 0 –3 + (i + 18) + 5i (–3 + 18) + (i + 5i) –(3 – i) + (18 + 5i)