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asked ago in Lines and Angles by (11.7k points)

Define the following terms.

(i) Line segment 

(ii) Collinear points

(iii) Parallel lines

(iv) Intersecting lines

(v) Concurrent lines 

(vi) Ray 

(vii) Half-line

Sarthaks Test For Class 7-12

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(i) Line segment: The part of a line that connects two points or we can say that a shortest distance between the two points. A line segment is one-dimensional.

Here AB is a line segment. 

(ii) Collinear points: Two or more points are said to be collinear if all the points lie on same line. 

(iii) Parallel lines : Two lines in a plane are said to be parallel lines if they do not intersect each other.

Here l and m are parallel lines. 

(iv) Intersecting lines: Two lines are intersecting if they have a common point. The common point is known as point of intersection.

Here l and M are intersecting lines. And P is point of intersection. 

(v) Concurrent lines: Two or more lines are said to be concurrent if there is a point which lies on all of them.

Here l, m and n are concurrent lines. 

(vi) Ray: A straight line extending from a point indefinitely in one direction only.

Here OA is a ray. 

(vii) Half-line: If A, B. C be the points on a line l, such that A lies between B and C, and we delete the point A from line l, the two parts of l that remain are each called a half-line. 

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