two distinct lines cannot have more than one point in common. EXERCISE 5.1 1. Which of the following statements are true and
lines cannot have more than one point in common.
1. Which of the following statements are true and which are false? Give reasons for your
(). Only one line can pass through a single point. F
(ii) There are an infinite number of lines which pass through two distinct points. F
(iii) A terminated line can be produced indefinitely on both the sides. T
(iv) If two circles are equal, then their radii are equal. T
(v) In Fig. 5.9, if AB =PQ and PQ = XY, then AB =XY.
2. Give a definition for each of the following terms. Are there other terms that need to be
defined first? What are they, and how might you define them?
(i) parallel lines
(ii) perpendicular lines (iii) line segment
(iv) radius of a circle (v) square
3. Consider two ‘postulates’ given below:
Given any two distinct points A and B there exists a third point which is in