The interesting thing is that vertical angles are equal: The term “Vertical" in this case means they share the same Vertex or the same (corner point).Įxample: Here a° and b° are vertical angles. The angles opposite to each other when two lines cross are known as vertical angles. Any two intersecting lines form two pairs of vertical angles that are opposite to each other. Vertical angles are the angles that are opposite to each other. In geometry, when two lines intersect they form four angles. Whereas, in complementary angles, the sum of two angles will be 90°. Supplementary angles will always have a sum of 180 ° for two angles. Apart from these two major types of angles we also have another major category of angles called complementary and supplementary angles. What Are Complementary & Supplementary Angles?Īngles can be subcategorized into two major types based on rotation and based on their magnitude. If the lines are not meeting each other and are at an equal distance they are parallel lines.Įven if you keep extending a parallel line you can do that indefinitely and they would still not meet each other at any point or intersect with one another. There are no set numbers to identify a parallel line. Similarly, railway tracks and zebra crossing are also examples of parallel lines.Įvery line can have multiple parallel lines. They do not meet each other and are at an equal distance from one another as well. The corresponding angles and the vertical angles of parallel lines are always equal.įor example, the lines that we see in our notebooks are parallel lines. Parallel lines have equal alternate interior and exterior. Parallel lines could be horizontal, vertical or even diagonal lines. Where intersecting lines meet each other parallel lines do not meet each other on a plane and are at an equal distance from each other. Parallel lines are opposite of intersecting lines. Perpendicular lines are exceptional cases of intersecting lines. When two lines intersect at an angle of 90 degree, which are drawn on the same plane, they are called perpendicular lines. If there is a line that crosses more than one point or intersects more than one point are not straight lines but curved lines. Crossroads are also a great example of intersecting lines as they are two different roads meeting at a common point. These two intersecting lines crossing each other on a plane form a pair of vertical angles and have a common vertex or a common meeting point.įor example, scissors have two arms and these two arms form intersecting lines that have a common meeting point. These lines can cross each other at any angle but the angle is always more than 0° and less than 180°. There will always be one common point even if there are two or more lines intersecting each other. All the intersecting lines will meet each other at one point as they are crossing each other, this common point on the intersecting lines is called an intersection point or point of intersection. When two or more lines intersect each other on a plane, they are known as intersecting lines. Before we learn about vertical angles let us first understand a few basic concepts that are important to understand as well. Students will be able to learn and understand what are vertical angles and also how to calculate vertical angles with solved examples and fun facts and answers to the most frequently asked questions about vertical angles.
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