Line Segment
part of a line beginning at one endpoint and ending at another
A line segment is a part of a line that is bounded by two endpoints. It is a straight, one-dimensional figure that is finite in length, meaning that it has a definite start and end point. Line segments are often described using two points, known as endpoints, which help to define its length and direction.
A line segment can be measured using units of length such as inches, meters, or feet. The formula for finding the length of a line segment is derived from the distance formula, which states that the distance between two points in a coordinate plane is equal to the square root of the sum of the squares of the differences of their coordinates.
Line segments can be named using a single capital letter, such as AB, where A and B are the endpoints. It is important to note that a line segment cannot be extended indefinitely in either direction, whereas a line can.
Some common examples of line segments include the sides of a square or rectangle, a line of stitching on a piece of fabric, and a segment of a road or highway between two intersections. Understanding the characteristics and properties of line segments is important in geometry and other fields of mathematics.
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