Parallelogram Properties

Explore the application below and then answer the two questions.
As you change the shape of the parallelogram, how do the angle measures relate to one another?
What about the different side lengths?

Parallelogram Diagonals

Slide the button, to find the diagonals of the parallelogram. Reset it. Then change the side of the parallelogram by moving one or more of the vertices. Finally slide the button again to the end.
As you use the application, what does it tell you about the diagonals of the parallelogram

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