# Line & Angle Relationships

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Line and angle relationships will look at if two lines are parallel to one another, for example. Find out about line and angle relationships with help from an experienced math professional in this free video clip.

Part of the Video Series: Solving Math Problems
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## Video Transcript

Hi, I'm Ryan Ault. I'm a physicist and this is line and angle relationships. In this example we have three different lines. These two are parallel to each other. We have a third line that is just cutting through the two. Now we can make some relationships, find some relationships between these angles and we see that there are eight different angles here and angle one is actually equal to angle seven, angle two is equal to angle eight, angle three is equal to angle five and angle four is equal to angle six. Now it's useful to realize that angles three and four, angle three plus angle four equals 180 degrees because it is a supplementary angle. I'm Ryan Ault and this is line and angle relationships.

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