Exercise : Trigonometry MCQ Questions and Answers
Question 1
Line which is perpendicular to line passing through intersection point is called
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Correct Answer : D. normal
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Question 2
If cos 55? and sin 55? = 0.8 each then answer of 3 cos 125? + 5 sin 125? is
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Correct Answer : C. 1.6
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Question 3
If cos 65° + cos 55° = cos θ, find θ in radians
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Correct Answer : C. 0.087
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Question 4
For Cosine Rule of any triangle ABC, b? is equal to
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Correct Answer : A. a? + c? - 2ac cos B
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Question 5
By expressing sin 125? in terms of trigonometrical ratios, answer will be
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Correct Answer : A. sin 55? = 0.8192
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Question 6
Find the value of A between 270° and 360° if sin^2 A – sin A = 1
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Correct Answer : C. 330?
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Question 7
Solve for the value of A? when sin A = 3.5 x and cos A = 5.5 x
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Correct Answer : A. 32.47?
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Question 8
Sine rule for a triangle states that
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Correct Answer : C. sin A/a = sin B/b = sin C/c
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Question 9
Solve for G if csc (11G – 16 degrees) = sec (5G + 26 degrees)
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Correct Answer : D. 5 degrees
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Question 10
Solve for side b of a right spherical triangle ABC whose parts are a = 46?, c = 75? and C = 90?.
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Correct Answer : B. 48?
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