Exploring Parallelograms
Sides and Angles of a Parallelogram
Sides of a Parallelogram
Click the box next to Opposite Sides 1. What do you notice about the lengths of and (denoted by AC and BD)?
Click the box next to Opposite Sides 2. What do you notice about AB and CD?
Now move around vertices A, C, and D. Does the previous observations remain true?
Angles of a Parallelogram
Click on the box next to Opposite Angles 1. What do you notes about the measures of and (denoted by and )?
Click on the box next to Opposite Angles 2. What do you notice about and ?
Now move around vertices A, C, and D. Does the previous observations remain true?
Properties of Parallelograms.
The previous observations display two properties of parallelograms. What do you think these two properties are?
Diagonals of a Parallelogram
Diagonals
Click on the boxes next to Diagonal BC, Diagonal AD, and Show Length. Which of the following seems to be true?
Now move around vertices A, C, and D. Does the previous observations remain true?
This displays another property of parallelogram. What do you think this property is?