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

In how many points can two distinct lines at the most intersect?

Given two points P and Q, find how many line segments do they determine.

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.

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.