G10mathn g

in #mse6 years ago

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

  1. 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°
  2. 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

  1. The value of 2 + 4 sin 30° = ……….
    A.1 B. 2 C. 3 D. 4 E. 6
  2. △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
  1. Given that tan x = 35 , then sin y = ……..
    A.35 B.34 C.45 D.54 E.53
  1. Given that tan x = 15 , then tan y = ……….
    A.310 B.13 C.15 D.12 E.35
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