geometry: help on Always, Sometimes, or Never questions?

[wishy]

worksheet link: http://i143.photobucket.com/albums/r143/rainasky/geom.gif
so far I've got:
1. A
2. A
3.
4. S
5.
6. N
7. N
8. S
9. A
10. A
but I'm not sure if they're correct.

Also, can someone explain how to do this problem? I don't have a clue where to start.
http://i143.photobucket.com/albums/r143/rainasky/geom2.gif

thank you so much!

 

[Deleted member 4993]

worksheet link: http://i143.photobucket.com/albums/r143/rainasky/geom.gif
so far I've got:
1. A
2. A
3.
4. S
5.
6. N
7. N
8. S
9. A
10. A
but I'm not sure if they're correct.

Also, can someone explain how to do this problem? I don't have a clue where to start.
http://i143.photobucket.com/albums/r143/rainasky/geom2.gif

thank you so much!

If the sum of those angles = S then

1/2*(mDBA +mDBC) > S > 1/3* (mDBA +mDBC)

Incidentally, to solve #5 of set 1 - draw a picture like this problem.