Please let me know how he did it. I am more interested in the ap

I am more interested in the approach than the final answer.

所有跟帖： 

• My son -rlmom- ♀ (219 bytes) () 09/04/2010 postreply 06:08:21

• That was my son's explanation. accidentally only wrote "My son" -rlmom- ♀ (0 bytes) () 09/04/2010 postreply 06:09:24

• "marked points 0,4, and 2, 0". The points should be (4, 0) and ( -BeLe- ♀ (164 bytes) () 09/04/2010 postreply 06:26:10

• rl's explanation -rlmom- ♀ (135 bytes) () 09/04/2010 postreply 06:31:28

• I folded a piece of graph paper, and found (m,n) to be roughly ( -BeLe- ♀ (86 bytes) () 09/04/2010 postreply 06:44:02

• 回复：I folded a piece of graph paper, and found (m,n) to be roughl -rlmom- ♀ (510 bytes) () 09/04/2010 postreply 07:06:23

• your way -rlmom- ♀ (235 bytes) () 09/04/2010 postreply 07:20:53

• "with virtually any slope". That is not true. -BeLe- ♀ (92 bytes) () 09/04/2010 postreply 07:24:27

• The two lines are not parallel. Instead of a paralleogram, you s -BeLe- ♀ (234 bytes) () 09/04/2010 postreply 07:21:09

• 回复：The two lines are not parallel. Instead of a paralleogram, yo -rlmom- ♀ (248 bytes) () 09/04/2010 postreply 07:39:48