Well, to calculate this you must do: 1X2X3X4X5X6=720. So there are 720 different combinations.
Different polygons have differentiating amounts of symmetrical lines.
There are many different lines in geometry
Different quadrilaterals have different lines of symmetry, try searching a specific shape for example square
Since the question does not require them to be straight lines, the answer is infinitely many.
Two different sets.
People form governments for many different reasons. These people form governments so that they can be more powerful and stand up for their rights for example.
2 pairs.
10 lines
If someone has regular seizures, then they have epilepsy. What causes their seizures can be many different things, as it is different for different people. What form their seizures take will also be different for different people.
Different polygons have differentiating amounts of symmetrical lines.
It has a pair of opposite parallel lines of different lengths
It has one pair of parallel lines of different lengths
I am doing a project on it at school (I'm in grade 7) there is many different opinions on why they were created. Some people think they are astronomical charts, others think the nazca people were slaves and were forced to do them. The strange thing is, there is no trace of how they became, or how they died. That is why some people think they were aliens. There is also a drawing of a astronaut-looking person. But no one really knows.
There are many different lines in geometry
106 lines
Different quadrilaterals have different lines of symmetry, try searching a specific shape for example square
15 lines.