Panthit

Chords and Tangents

1. In the circle O, diameter AB= 20 cm, and chord AC= 16 cm, OP ⊥AC, then OP=……
   A. 8 cm B. 7cm C. 6cm D. 5 cm E. 4cm

2.The distance between the two parallel chords AB and CD is
A. 4 cm B. 5cm C. 6 cm D. 7 cm E. 4cm

3.The diameter of a circle is 10 cm and the chord through a point P, the midpoint of the chord
is 6 cm . The distance of P from the centre O is
A.3 cm B. 4 cm C. 5 cm D. 6cm E. 7 cm

4. In the figure, PR⊥OQ and O is the centre. If NQ =2 cm and OQ=5 cm, then PR=………
   A. 4 cm B. 5cm C. 6 cm D. 7 cm E. 8 cm

5. A point P is 10 cm away from the centre of the circle of radius 6cm. The length of the tangent
   segment from P to the circle is
   A. 5 cm B. 6 cm C. 7 cm D. 8 cm E. 9 cm

6.In the figure, x=………
A. 3 B. 4 C. 5
D. 6 E. 7

7. In the figure, x=………
   A. 10 B.11 C. 12
   D. 18 E. None of these

8. In the figure, x=………
   A. 8° B. 9° C. 12°
   D.14° E. 15°

9. In the figure, x=………
   A. 10 B. 11 C. 12
   D. 13 E. 14

10. In the figure, x=………
    A.9 B.10 C.11
    D.12 E.13

11. Given the two circles where centers O and Q . The number of common tangents of two
    circles is
    A.1 B. 2 C.3 D.4 E. More then 4

12.Which of the following is (are) true?