2. Operations with Line Segments
2.1. Adding and subtracting line segments
- The addition of two segments is another segment that begins at the origin of the first segment and ends at the end of the second segment.
- The length of the new segment is the addition of the measures of those two segments.
- The subtration of two segments is another segment that takes as the origin, the end of the smaller segment and as the end, the end of the biggest segment.
- The length of the segment difference is equal to the subtraction of the lengths of two segments.
2.2. Line Bisector
- The line bisector is a perpendicular line that passes through the midpoint of the segment, so it divides the segment in two equal parts.
To draw a line bisector we use the compass and the rulers. Let's check how to draw it with this video:
2.3. How to divide a line segment into equal parts (Thales theorem)
1. Draw a ray that shares the origin of point A with the line segment segment AB.
If you have any doubt about the process, you can watch this video: