A line segment is a line that has boundaries. It's a straight line that links two points and does not extend beyond them. A line segment is most commonly used in Geometry. The term 'segment' means a portion of, or a part of. A line segment can be any portion of an existing line, and can be either a piece at one end of the line, or a piece within the length of the line. A circle segment can be either a pie shaped portion of the entire area of the circle, or a portion of the perimeter (circumference) of the circle . The latter should be expressed as a circumferential portion, to avoid confusion.
altitude
line segment
A line extends forever into space and a line segment is a segment or part of a line, so a line is longer than a line segment.
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A line that intersects a segment at its midpoint bisects the segment.
A line segment has distinctive end points.
line segment
The description given fits that of a right angle triangle
Altitude
altitude
A point is an undefined term. But given two points, they can be joined using a line segment.
line segment
line segment
line segment
A defined line segment has endpoints.
The description given fits that of a right angle triangle
The correct term for a line segment with both endpoints on a circle is a chord. The diameter of a circle is also a chord.