In Fig. 7.17, name the following:

(i) Five line segments.

(ii) Five rays.

(iii) Four collinear points.

(iv) Two pairs of non-intersecting line segments.

Name the line segments determined by the three collinear points P, Q and R.

Write the truth value (T/F) of each of the following statements:

(i) Two lines intersect in a point.

(ii) Two lines may intersect in two points.

(iii) A segment has no length.

(iv)Two distinct points always determine a line.

(v) Every ray has a finite length.

(vi) A ray has one end point only.

(vii) A segment has one end point only.

(viii) The ray AB is same as ray BA.

(ix) Only a single line may pass through a given point.

(x) Two lines are coincident if they have only one point in common.

Fill in the blanks so as to make the following statements true.

(i) Two distinct points in a plane determine a ………..line.

(ii) Two distinct ………….in a plane cannot have more than one point in common .

(iii) Given a line and a point, not on the line, there is one and only……… line which passes through the given point and is ……. To the given line.

(iv) A line separates a plane into …… parts namely the ……. The itself.

How many least number of distinct points determine a unique line?