Consider the following geometry problems in 3-space Enter T or F depending on whether the statement is true or false. (You must enter T or F -- True and False will not work.)
1. Two lines either intersect or are parallel
2. A plane and a line either intersect or are parallel
3. Two planes orthogonal to a third plane are parallel
4. Two lines orthogonal to a third line are parallel
5. Two planes parallel to a line are parallel
6. Two lines parallel to a third line are parallel
7. Two lines parallel to a plane are parallel
8. Two lines orthogonal to a plane are parallel
9. Two planes orthogonal to a line are parallel
10. Two planes either intersect or are parallel
11. Two planes parallel to a third plane are parallel