Line segment counting method uses lowercase letters to represent line segments, such as AB. A and b are the two endpoints of the line segment.

1、? Characteristics of line segments

A line segment has a certain length, which can be expressed in units of measurement. The line segment is straight, without bending or turning. A line segment has no width, only length. To draw a line segment, we need to know the positions of the two endpoints of the line segment and connect them with a ruler or pencil. Make sure that the drawn lines are straight, with no bends or corners.

2. Measure the length of the line segment

You can measure the length of a line segment with a ruler or ruler. Put one endpoint on the 0 scale of the ruler, and then take the other endpoint as a benchmark to see its scale value on the ruler. This value is the comparison and sorting of line segment lengths.

We can compare and sort the lengths of different line segments.

3. What is the relationship between the extension and interception of line segments and geometric figures?

Line segments can be lengthened or shortened. Extending a line segment means continuing to extend in a certain direction at one end point; Intercepting a segment is to remove a part of the segment and get a shorter segment. Relationship between line segments and other geometric figures

Line segment is one of the most basic figures in geometry. It can be used as the boundary or edge of other geometric figures, such as triangles, quadrangles and so on.

What is the difference in the application of line segments?

1, the application of line segment

The concept of line segment is widely used in daily life. For example, geographically, we can use line segments to represent the distance between two cities; In architectural design, line segments can be used to represent the length of walls or roads. When two line segments are equal in length, we say they are equal. When the length of a line segment is greater than the length of another line segment, we say it is longer; or vice versa, Dallas to the auditorium

2. The difference between straight lines and line segments

A straight line is composed of an infinite number of points, with no starting point and no ending point. There is obvious continuity between the starting point and the ending point of the line segment.

The line segment is continuous, which means that we can select any two points on the line segment and find countless other points between them.