6-2 Properties of Parallelograms
This applet can be used to see the properties of parallelograms.
- Drag any of the blue points to change the parallelogram.
- Click the "Duplicate" button to create a copy of the parallelogram. If necessary, adjust the position of the second parallelogram to match the colors of the angles of the original parallelogram.
- Drag the orange point to rotate the copy around the center of the parallelogram.
- Parallelograms
- Construct a general parallelogram.
- Click on the "Duplicate" button and if necessary, adjust the position of the second parallelogram to match the colors of the angles of the original parallelogram.
- Rotate the second parallelogram on 180 degrees around the intersection point of the diagonals. Use this symmetry to notice the three properties:
- The opposite sides are congruent
- The opposite angles are congruent
- The diagonals bisect each other