segment addition and midpoint.gwb - 1/11 - Mon Aug 29 2016 10:34:11

segment addition and midpoint.gwb - 2/11 - Mon Aug 29 2016 10:37:21

segment addition and midpoint.gwb - 3/11 - Mon Aug 29 2016 10:42:19

segment addition and midpoint.gwb - 4/11 - Mon Aug 29 2016 10:42:33

segment addition and midpoint.gwb - 5/11 - Mon Aug 29 2016 10:45:45

segment addition and midpoint.gwb - 6/11 - Mon Aug 29 2016 10:48:29

segment addition and midpoint.gwb - 7/11 - Mon Aug 29 2016 10:55:06

segment addition and midpoint.gwb - 8/11 - Mon Aug 29 2016 11:04:52

segment addition and midpoint.gwb - 9/11 - Mon Aug 29 2016 11:06:58

segment addition and midpoint.gwb - 10/11 - Mon Aug 29 2016 11:12:19

segment addition and midpoint.gwb - 11/11 - Mon Aug 29 2016 11:15:25