In the given figure, AB is the largest chord of the circle, AB = 18 cm and the length of the chord CD is half of length of chord AB, then :

1. OP = 18 cm and CD = 18 cm

2. OP = 9 cm and CD = 18 cm

3. OP = 18 cm and CD = 9 cm

4. OP = 9 cm and CD = 9 cm

The relation between the area enclosed by a major segment of a circle and area enclosed by its semi-circle is :

1. major segment is smaller than the semi-circle.

2. major segment is bigger than the semi-circle.

3. major segment is equal to the semi-circle.

The radius of a circle is 5 cm then the length of its longest chord is :

1. less than 5 cm.

2. equal to 5 cm.

3. equal to 10 cm.

4. less than 10 cm

The diameter of a circle with centre at point O is 30 cm. A point P lies in the same plane as the circle and OP = 20 cm, then point P lies :

1. on the circumference of the circle

2. inside the circle.

3. outside the circle.

4. nothing can be said