HOP = 3 cm and AB = 27cm. Then the length of the arc AB is
A. 3π cm B. 2π cm C. πcm D. 2π3 cm E.π3 cm
- OPQ is a sector of a circle , center O and radius r cm , ∠ POQ = θ°.The area , in cm2 , of
sector OPQ is
A. rθ B.12rθ C. r2θ D.πr2θ360° E.πr2θ180° - O is the centre of the circle , and PT is a tangent . The area of shaded region is
A. 18-36π2 B. 18-9π2 C.9π2 D.18 E. 16
18.If cos x = 2425, and x is acute, then the value of tan x=……….
A.2524 B. 257 C.247 D.724 E.725
- The value of 2 + 4 sin 30° = ……….
A.1 B. 2 C. 3 D. 4 E. 6 - △PQR is a right triangle at Q. If ∠R = 60° and QR = 4 cm, then PR = ……….
A. 4 cm B. 5 cm C. 6 cm D. 7 cm E. 8 cm
21.In the figure, TG is a tower and angle of elevation of T from the point is 45°. If PG =20 m,
then TG = ………
A. 10 cm b. 15 cm C. 20 cm D. 25 cm E. 50 cm
- Given that tan x = 35 , then sin y = ……..
A.35 B.34 C.45 D.54 E.53
- Given that tan x = 15 , then tan y = ……….
A.310 B.13 C.15 D.12 E.35