IM 6.1.4 Lesson: Parallelograms
Figures A, B, and C are parallelograms. Figures D, E, and F are not parallelograms. Study the examples and non-examples.
What do you notice about the number of sides that a parallelogram has?
What do you notice about opposite sides of a parallelogram?
What do you notice about opposite angles of a parallelogram?
Find the area of this parallelogram on the left. Explain your reasoning.
Change the parallelogram by dragging the green points at its vertices. Then find its area and explain your reasoning.
If you used the polygons on the side, how were they helpful? If you did not, could you use one or more of the polygons to show another way to find the area of the parallelogram? Try to do so.
Find the area of each parallelogram. Show your reasoning.
Find the area of the parallelogram below. Explain your reasoning.