Mathematics → Trigonometry Quiz

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10. An object moved in a circular path of radius 21m such that it made an angle of 30°. What is the distance (in meter) covered by the object?
(A) 11
(B) 21
(C) 31
(D) 41

ANSWERS: TRIGONOMETRY QUIZ
6. (D)
7. (C)
8. (B)
9. (D)
10. (A)

SOLUTIONS: TRIGONOMETRY QUIZ

NOTE: The period of sinx is 2 pie.

NOTE: L is circular path (distance), r is radius of the circle, and theta is angle in radian.