Non-congruent alternate interior angles

This is a picture of a ladder. The two green lines are cut by the blue transversal. Since the two green lines are not parallel, the alternate interior angles are not congruent. Example of this are the yellow arched angle and the red arched angle. The red arched angle is obtuse and the yellow one is acute. Ladders can be found in most homes. Ladders are also used at construction sights and whenever anyone needs to reach something above their height. 

This image was found at: http://img.rakuten.com

Congruent obtuse angles

This is a picture of the side of a typical suburban house. The two angles created by the roof to the side of the house are congruent obtuse angles. Houses are one of the most common building in the country. Most people live in houses with their families. Everyone is brought up and raised in a house and live in one their whole life. 

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Segment bisectors

This is a picture of a football field. A football field is 100 yards long and it bisected by the 50 yard line. The 100 yard blue segment of the sideline has been bisected by the red segment across the field at midfield. Football is a very popular sport and there are football fields everywhere. There are a lot of football players who practice and play on these fields every day. 

This image was found at: 4.bp.blogspot.com 

Skew lines

This is a picture of the Washington monument in Washington, D.C. The skew lines are the lines created by the side of the Washington monument and the side of the water. They are on two different planes and will never intersect. This monument is extremely popular and is in our nations capital. Tourist from every where in the world come to visit this monument. 

This picture was found at: thelittleinnontstreetdc.com 

Supplementary angles that are not a linear pair

This is a picture of the cabinets in my kitchen. The two right angles formed in each corner of the cabinet are a supplementary pair. Right angles' measures are 90 degrees and 90+90= 180 degrees and in order to be a supplementary pair the angles' measures have to add to 180 degrees, which these angle measures do.  They are not a linear pair since they are not ajacent and not forming a line. Cabinets are found in every building. They are used for storage of all kinds of items. They are used for storing dishes in my kitchen but can be used to store anything that will fit in them.  

Adjacent non-supplementary angles

This is a picture of a sliced up piece of pizza. The adjacent angles are creates by the slices and are the ones outlined in blue and green with the black segment as the included side. They are not supplementary since they do not form a straight line. Pizza is one of the most common foods in the US and is many people's favorite food. In almost every shopping center you can find a restaurant that serves pizza. Also every grocery store sells frozen pizzas. 

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Vertical angles

This is a picture of a railroad crossing sign. The two pieces of the sign cross over each other and create two pairs of vertical angles. The blue arched angles are one of the pairs of vertical angles. Railroad crossing signs are posted at every place a railroad meets a street driven on by cars. They are used at all railroad crossings so they are very common. 

This image was found at: bouldincreek.org

Angle bisector

This is a picture of a door with a sunburst muntin with the window at the top. A muntin is the design that separate the glass window in doors. They also can be found at the top of almost all windows in houses and every house has windows. In the picture the angle created by the two red pieces of wood is bisected by the green piece of wood.  

This image was found at: breach.craftproducts.com

Line perpendicular to a plane

This picture is of a stop sign stuck into the ground next to a road. The post of the stop sign is perpendicular to the plane of the ground it is stuck into. Stop signs are very frequently posted along roads and at intersections. They are a nesecity to keep the traffic of cars from crashing into each other. Every driver has seen a stop sign and almost all people have seen at least one in their life.  

This image was found at: images.fineartamerica.com 

Three or more coplanar parallel lines

This is a Olympic size swimming pool. The lane lines that are connected at each end of the pool represent the coplanar parallel lines. They are on the same plane which is the surface of the water, and are all set up to be parallel so that the lanes are evenly spaced out. A person can find a pool almost any where in a neighborhood. A lot of people swim in pools over the summer and this activity is very common throughout the summer. Also competitive swimmers use pools year round to practice. 

This picture was found at: sol-sports.net