. If we convert 135° to radian measure, we get
A.3π/4 B.3π/2 C.π/4 D.π/2 E.(3+π)/2
- 75° in radian measure is
A.π/75 B.75/π C.5π/12 D.12π/5 E.π/30
3.An arc PQ subtends an angle 60° at the centre O of radius 3 cm. The area of the sector POQ is
A. 270 〖cm〗^2 B. 3/2 〖cm〗^2 C. 3π/2 〖cm〗^2 D. 3π 〖cm〗^2 E. 180 〖cm〗^2
. 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