Fill in the blanks with correct word(s) to make the statement true:

(i) Radius of a circle is one-half of its …..

(ii) A radius of a circle is a line segment with one end point at ….. and the other end-point on …..

(iii) A chord of a circle is a line segment with its end points ….

(iv) A diameter of a circle is a chord that ….. the centre of the circle.

(v) All radii of a circle are …..

Which of the following has definite length?

1. a line

2. a ray

3. a line segment

4. none of these

The number of points required to name a line is

1. 1

2. 2

3. 3

4. 4