- Books Name
- CBSE Class 6 Mathematics Book
- Param Publication
- CBSE Class 6
(b) Parallel Lines : If two or more lines do not meet each other however far they are extended, then they are called paralle lines.
(c) Collinear Points : Three or more points in a plane are said to be collinear if they all lie on the same line.
In Fig, points A, B, C and D are collinear because only one line l passes through all of them.
If the points do not lie on a line, they are called non-collinear points.
Ex In Fig. name :
(i) Four non-collinear points.
(ii) Point of intersection of the lines l and m.
(iii) Point of intersection of the lines r and n.
(iv) Point of intersection of the lines q and n.
(v) Point of intersection of the lines p and q.
(vi) Four line segments.
(vii) Two points on the line q.
Sol. (i) A, B, C, D (ii) B (iii) D (iv) C (v) A