Exploring Properties of Parallelograms

Measure all of the sides of the parallelogram.
What do you notice? Be sure that whatever you notice continues to be true when you change the shape.
Draw the diagonals of parallelogram, and measure the lengths of various parts of the diagonals.
What do you notice? Be sure that whatever you notice continues to be true when you change the shape.
Clear your previous work and measure all four angles of the parallelogram.
What do you notice? Be sure that whatever you notice continues to be true when you change the shape.
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– James McKee

Information: Exploring Properties of Parallelograms