Non-congruent alternate interior angles

This is a house. This object shows non congruent interior angles. The pink line extends down and that forms alternate interior angles that are not congruent with the green line, because one line is obtuse and one angle is acute. In the real world a house is used by people. Houses are found in neighborhoods. This is in the advertisement industry. http://www.google.com/imgres?um=1&hl=en&client=safari&tbo=d&rls=en&biw=1192&bih=639&tbm=isch&tbnid=mmR7VAMB91MUYM:&imgrefurl=http://www.nps.gov/glca/historyculture/navajobridge.htm&docid=kURt39YRODgTsM&imgurl=http://www.nps.gov/glca/historyculture/images/Navajo_Bridges_1.gif&w=556&h=417&ei=_jWgUIa_Da2G0QGxsYHwCw&zoom=1&iact=rc&dur=358&sig=101161591993119626923&page=1&tbnh=146&tbnw=191&start=0&ndsp=18&ved=1t:429,r:6,s:0,i:169&tx=51&ty=63

Supplementary angles that are not a linear pair

This is a field goal. These are found on sports fields. They are used by football players. These two angles are supplementary but they are not a linear pair. The two right angles in the corners are supplementary(they equal 180) but they are not a linear pair. http://www.google.com/imgres?um=1&hl=en&client=safari&tbo=d&rls=en&biw=1192&bih=639&tbm=isch&tbnid=qNSmk8Wt5v4sFM:&imgrefurl=http://thoughtupload.blogspot.com/2012/09/red-zone-field-goals-reacting-to-fixing.html&docid=IUsHW8GlzJgqLM&imgurl=https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjGHzXwws5Qgc3Q_nVW-6kMxLBHVE4J-oNmKB4K4d1di1Ux031hQ-LbqLi9Jo6x5dYDWbpUFihrxjTZ0UrN6Mpsp_d8VtMTpB3BQGjdeC7_3A-u_G7jT5bwISoULSEH9pM_3YMpUX75ppVy/s1600/FieldGoal.jpg&w=1280&h=853&ei=SDOgUOv6KavE0AGLt4GwCw&zoom=1&iact=rc&dur=331&sig=101161591993119626923&page=1&tbnh=153&tbnw=230&start=0&ndsp=13&ved=1t:429,r:0,s:0,i:144&tx=87&ty=32

Adjacent non-supplementary angles

This is a picture of a tripod. This object shows adjacent non-supplementary angles because the angles are adjacent and they are not supplementary. I took this picture. This object can be found in many places, inside and outside. Tripods are used to keep a camera or binoculars steady when someone is not holding it. This industry is metal fabrication.