| Line 2: |
Line 2: |
| | | | |
| | [[Image:parallel.gif]] | | [[Image:parallel.gif]] |
| | + | |
| | + | It has the following properties: |
| | + | |
| | + | * Opposite sides are equal |
| | + | * Diagonals bisect each other |
| | + | * Opposite angles are equal |
| | + | * Adjacent angles sum to 180<sup>0</sup> |
| | + | * It has rotational symmetry of order at least 2. |
| | + | |
| | + | |
| | | | |
| | [[category:geometry]] | | [[category:geometry]] |